https://www.facebook.com/438030196581545/

Anesco Maths and Science Tutorial

Name: Anesco Maths and Science Tutorial
Address: 20, Esu Street, Eket, AFAHAEKET,AKWAIBOM,, NG
Telephone: 08108159580
Rating: 5

Home
Nigeria
Eket
Anesco Maths and Science Tutorial

Call Contact the business

I am committed to making Mathematics and sciences easy for learners. I share my knowledge passionately to all learners
(4)

FOR YOUR LANDSCAPING CONTACT; ANESCO NIG LTD
Email: [email protected] or [email protected]
Tel: 08108159580 or 08050364511

ABOUT US
We are a grass loving, tree-hugging, outdoorsy bunch, and we are committed to your landscape, and creating a perfect reflection for your very own outdoor oasis
we offer the most quality work at a considerably affordable prices. ASSESSMENT
following our initial conversation, ANESCO NIG LTD will visit the property to better understand your needs, wants and desires. This crucial step will allow us to put together an accurate estimate, the scope of the building materials necessary to complete the job and to visualize needed access for any potential machinery or materials needed. LIABILITY
in order to demonstrate our commitment to satisfying our client's desire, we offer a liability period of two months, during which repair damages, replace dead seedlings and offer our maintenance services without any additional cost. This is unique of us

MAINTENANCE SERVICES
The value of a landscape lies on its maintenance. We offer the best and relatively cheap maintenance services to new and already established landscape. So you relax as we do the maintenance of your landscape. Our routine maintenance includes the following:
> Eco friendly weed and pest control
> Pruning
> Fumigation
> Fertilizer application
> Trimming
> Repairs of hardscape

COST OF OUR SERVICES
We offer the most quality services at considerably affordable prices. POST-WORK
After completion of projects, we ensure that we remove all debris, and leave the premises in broom-clean condition.

29/10/2026

Likely JAMB Questions and Answers From Separation Techniques
1. Sieving is a technique used to separate mixtures containing solid particles of?
A. Small sizes
B. Large sizes
C. Different sizes
D. The same size
Correct Answer: C (Sieving works by allowing particles smaller than the sieve's pores to pass through, while larger particles are retained. This principle relies on a difference in particle sizes).

2. Which method is used to separate an insoluble solid from a liquid?
A. Distillation
B. Filtration
C. Sublimation
D. Evaporation
Correct Answer: B (Filtration is the process of separating an insoluble solid (residue) from a liquid (filtrate) by passing the mixture through a porous medium like filter paper).

3. In filtration, the liquid that passes through the filter paper is called the?
A. Residue
B. Filtrate
C. Solute
D. Precipitate
Correct Answer: B (The liquid that passes through the filter paper is known as the filtrate, while the solid left behind on the filter paper is the residue).

4. A mixture of iron filings and sulphur powder can be best separated by?
A. Adding water and filtering
B. Sublimation
C. Using a magnet
D. Fractional distillation
Correct Answer: C (Iron is magnetic while sulphur is not. Magnetism is used to attract and separate the iron filings from the mixture).

5. Which of the following mixtures cannot be separated by magnetism?
A. Iron fillings and sand
B. Steel ball bearings and plastic beads
C. Nickel powder and aluminium powder
D. Sulphur and charcoal powder
Correct Answer: D (Neither sulphur nor charcoal is magnetic. Therefore, magnetism cannot be used to separate this mixture).

6. Which of these mixtures can be separated using a separating funnel?
A. Ethanol and water
B. Kerosene and water
C. Sugar and water
D. Salt and water
Correct Answer: B [A separating funnel is used to separate immiscible liquids (liquids that do not mix), such as oil and water, which form two distinct layers].

7. The process of pouring out the clear upper liquid without disturbing the sediment is known as?
A. Filtration
B. Evaporation
C. Decantation
D. Sublimation
Correct Answer: C (Decantation is a simple separation technique where the liquid layer above a solid (sediment) or another immiscible liquid is carefully poured off).

8. A mixture of palm oil and water is best separated by?
A. Sublimation
B. Decantation or separating funnel
C. Distillation
D. Crystallization
Correct Answer: B (Palm oil and water are immiscible and form separate layers. They can be separated by decantation or more effectively with a separating funnel).

9. Winnowing is a technique used to separate mixtures based on differences in?
A. Magnetic properties
B. Density or weight
C. Boiling points
D. Particle sizes
Correct Answer: B (Winnowing separates lighter components from heavier ones using wind or moving air. It is based on differences in their densities or weights).

10. The method used to obtain pure solid B from a mixture of two solids where solid A is lighter than solid B is called?
A. Sieving
B. Winnowing
C. Magnetic separation
D. Crystallization
Correct Answer: B (Winnowing is the process of separating lighter components from heavier ones using air. This would effectively remove the lighter solid A, leaving the heavier pure solid B behind).

11. The process of obtaining a pure solid from a solution containing impurities is known as?
A. Distillation
B. Crystallization
C. Decantation
D. Filtration
Correct Answer: B (Crystallization is a separation technique used to obtain pure solid crystals from a solution, leaving impurities behind in the mother liquor).

12. Which method is most suitable for obtaining common salt from a salt solution?
A. Sublimation
B. Evaporation to dryness
C. Fractional distillation
D. Filtration
Correct Answer: B (Common salt is a solid dissolved in water. Evaporation to dryness will remove the water (solvent), leaving the salt (solute) behind).

13. Evaporation to dryness is not suitable for obtaining sugar from its solution because sugar?
A. Is insoluble in water
B. Would decompose on heating
C. Has a high melting point
D. Is volatile
Correct Answer: B (Sugar is a crystalline organic compound that decomposes or chars when heated strongly. Evaporation to dryness would destroy the sugar, so crystallization is preferred).

14. Fractional crystallization is a method used to separate mixtures of solids based on differences in their?
A. Melting points
B. Densities
C. Solubilities at different temperatures
D. Particle sizes
Correct Answer: C (Fractional crystallization separates a mixture of solids by utilizing the difference in their solubilities in a particular solvent at different temperatures).

15. The most preferred separation technique for isolating solutes where the purity of the constituent is of utmost importance is?
A. Sieving
B. Distillation
C. Recrystallization
D. Precipitation
Correct Answer: C (Recrystallization is generally considered a better method for achieving high purity of solutes (up to 99.9%) because of less contamination and better separation compared to other methods like distillation).

16. In crystallization, what is formed when a saturated solution is cooled?
A. Precipitate
B. Filtrate
C. Crystals
D. Vapour
Correct Answer: C (When a hot saturated solution is cooled, the solubility of the solute decreases, causing it to come out of the solution in the form of pure crystals).

17. To obtain pure crystals of copper(II) sulphate from a solution containing impurities, the appropriate method is?
A. Simple distillation
B. Evaporation to dryness
C. Recrystallization
D. Filtration
Correct Answer: C (Recrystallization is the best method to purify solids like copper(II) sulphate. The impure solid is dissolved in a minimum amount of hot solvent and then allowed to cool, forming pure crystals).

18. The principle behind simple distillation is the difference in the?
A. Densities of the components
B. Boiling points of the components
C. Solubilities of the components
D. Magnetic properties of the components
Correct Answer: B (Simple distillation separates components of a liquid mixture by heating and cooling. It vaporizes and condenses the components based on their different boiling points).

19. Which method would be most suitable to obtain pure water from a salt solution?
A. Filtration
B. Crystallization
C. Simple distillation
D. Sublimation
Correct Answer: C (In simple distillation, the salt solution is heated. Water, having a lower boiling point, evaporates, and its vapour is then condensed to collect pure water, leaving the salt behind).

20. The separation technique used to separate crude oil into its various fractions like petrol and kerosene is?
A. Simple distillation
B. Fractional distillation
C. Crystallization
D. Chromatography
Correct Answer: B (Fractional distillation is used to separate a mixture of miscible liquids with different boiling points, such as the various components of crude petroleum).

21. A mixture of two miscible liquids with a boiling point difference of less than 20°C is best separated by?
A. Simple distillation
B. Fractional distillation using a fractionating column
C. Use of a separating funnel
D. Evaporation
Correct Answer: B (When boiling points are very close, simple distillation is inefficient. A fractionating column provides multiple vaporization-condensation cycles, allowing for better separation of close-boiling liquids).

22. The property used in the industrial preparation of nitrogen and oxygen from air is?
A. Rate of diffusion
B. Density
C. Boiling point
D. Solubility
Correct Answer: C (In the industrial preparation of nitrogen and oxygen from air, the process of fractional distillation of liquefied air is used. This separates the components based on their different boiling points).

23. The most volatile fraction obtained from fractional distillation of crude petroleum contains?
A. Butane, propane and kerosene
B. Butane, propane and petrol
C. Ethane, methane and benzene
D. Methane, ethane and propane
Correct Answer: D (The most volatile fractions are gases at room temperature with the lowest boiling points, which are the small alkanes like methane, ethane, and propane).

24. Which of the following can be obtained by fractional distillation?
A. Sodium chloride from sea water
B. Iodine from a solution
C. Nitrogen from liquid air
D. Sulphur from a solution
Correct Answer: C (Liquid air is a mixture of gases. Fractional distillation of liquid air is the primary industrial method for obtaining nitrogen and oxygen).

25. To obtain pure water from a mixture of sand, water, and methanoic acid, the best sequence is?
A. Neutralization with NaOH followed by filtration
B. Neutralization with NaOH followed by distillation
C. Fractional distillation
D. Filtration followed by distillation
Correct Answer: D (First, filtration removes the insoluble sand. Then, distillation separates the water (by boiling it off) from the less volatile methanoic acid).

26. Ammonium chloride can be separated from its mixture with common salt by?
A. Filtration
B. Distillation
C. Sublimation
D. Evaporation
Correct Answer: C (Ammonium chloride sublimes (turns directly from solid to gas) upon heating, while common salt does not. The ammonium chloride vapour can be condensed back into a solid on a cool surface).

27. A mixture of sand and iodine crystals can be best separated by?
A. Filtration
B. Sublimation
C. Evaporation
D. Decantation
Correct Answer: B (Iodine is a sublime substance. When heated, iodine changes into purple vapour, leaving the non-sublime sand behind).

28. Which of the following substances can be purified by sublimation?*
A. Common salt
B. Sugar
C. Iodine
D. Copper sulphate
Correct Answer: C (Iodine is a classic example of a solid that undergoes sublimation. Ammonium chloride, naphthalene, and camphor are other examples).

29. Which separation technique relies on the difference in the rate at which substances move through a medium?
A. Filtration
B. Distillation
C. Chromatography
D. Magnetism
Correct Answer: C (Chromatography separates components of a mixture based on their different rates of movement (migration) through a stationary phase when carried by a mobile phase).

30. In paper chromatography, the line on which the sample is spotted is drawn with a pencil and not ink because ink?
A. Is expensive
B. Would dissolve in the solvent and interfere with the result
C. Is not visible
D. Is too thick
Correct Answer: B (Ink is itself a mixture that would separate into its component dyes during the experiment, creating false spots and interfering with the separation of the test sample).

31. In chromatography, the stationary phase is the?
A. Solvent
B. Paper
C. Sample mixture
D. Beaker
Correct Answer: B (The stationary phase is the phase that does not move. In paper chromatography, the chromatography paper acts as the stationary phase).

32. In chromatography, the mobile phase is the?
A. Paper
B. Solid to be separated
C. Solvent
D. Pencil line
Correct Answer: C (The mobile phase is the phase that moves. In paper chromatography, the solvent (e.g., water or ethanol) is the mobile phase that travels up the paper).

33. A mixture of common salt, ammonium chloride, and barium sulphate can best be separated by?
A. Addition of water followed by filtration then sublimation
B. Addition of water followed by sublimation then filtration
C. Sublimation followed by addition of water then filtration
D. Fractional distillation
Correct Answer: C (First, sublime to remove NH₄Cl. Then add water to dissolve NaCl, leaving insoluble BaSO₄, which is removed by filtration. The NaCl can then be recovered from the filtrate).

34. A mixture of sand, ammonium chloride, and sodium chloride is best separated by?
A. Sublimation followed by addition of water and filtration
B. Addition of water followed by filtration and sublimation
C. Sublimation followed by addition of water and evaporation
D. Filtration followed by evaporation and condensation
Correct Answer: C (First, sublime the NH₄Cl. Then add water to the remaining mixture to dissolve NaCl. Filter to remove sand. Finally, evaporate the filtrate to obtain NaCl crystals).

35. To obtain pure water from salt water, the processes involved are?
A. Evaporation and condensation
B. Melting and freezing
C. Filtration and evaporation
D. Sublimation and condensation
Correct Answer: A (Distillation involves evaporating (boiling) the water to form steam and then condensing the steam back into liquid water. This is the principle of simple distillation).

36. The first step in separating a mixture of sand, sugar, and iron filings is usually?
A. Adding water
B. Using a magnet
C. Filtration
D. Evaporation
Correct Answer: B (Using a magnet to remove the iron filings first is a quick and dry method, preventing the filings from rusting or complicating the subsequent steps of adding water to dissolve sugar).

37. A pure substance can be best defined as one that?
A. Exists in only one physical state
B. Consists of a single element or compound with a fixed melting and boiling point
C. Can be separated into its constituents by physical methods
D. Is always a homogeneous mixture
Correct Answer: B (A pure substance has a definite and constant composition with distinct and sharp melting and boiling points).

38. Water for town supply is chlorinated to make it free from?
A. Bad colour
B. Bacteria
C. Temporary hardness
D. Permanent hardness
Correct Answer: B (Chlorination is a disinfection process specifically used to kill harmful bacteria and other microorganisms present in water, making it safe for drinking).

39. Which of the following is a mixture?
A. Distilled water
B. Sodium chloride
C. Sea water
D. Copper
Correct Answer: C (Sea water contains water, various dissolved salts, and other substances in proportions that can vary, making it a mixture).

40. The separation of colours in a dye is achieved by?
A. Fractional distillation
B. Chromatography
C. Filtration
D. Crystallization
Correct Answer: B [Chromatography is specifically designed to separate and identify the different components (like pigments in a dye) in a mixture].

41. The separation process used to separate two or more miscible liquids is called?
A. Simple distillation
B. Fractional distillation
C. Separating funnel
D. Crystallization
Correct Answer: B (Fractional distillation is used to separate two or more miscible liquids with different boiling points, such as ethanol and water).

42. Centrifugation is a technique used to speed up the process of?
A. Distillation
B. Sedimentation and filtration
C. Evaporation
D. Sublimation
Correct Answer: B (Centrifugation spins mixtures at high speed to rapidly force denser particles (solid or liquid) to settle at the bottom, speeding up sedimentation, which can then be followed by decantation. It's an alternative to filtration).

43. Which of the following pairs of separation techniques depends on the differences in the boiling points of the components?
A. Filtration and decantation
B. Simple and fractional distillation
C. Sublimation and chromatography
D. Crystallization and evaporation
Correct Answer: B (Both simple and fractional distillation rely on heating a mixture to boil off components based on their different boiling points).

44. The diagram below (showing a magnet near a mixture) illustrates the separation technique of?
A. Filtration
B. Decantation
C. Magnetism
D. Sublimation
Correct Answer: C (A magnet is used to separate magnetic substances (like iron, nickel, cobalt) from non-magnetic ones).

45. Common salt obtained from sea water contains impurities and is therefore purified by?
A. Distillation and drying
B. Dissolving, filtration, and crystallization
C. Sublimation and condensation
D. Evaporation and condensation
Correct Answer: B (Crude salt is dissolved in water to make a solution. Insoluble impurities are filtered out. The salt is then obtained in pure form by crystallization).

46. Which of the following statements is correct about the separation of mixtures?
A. A mixture of two solids can always be separated by adding water
B. Distillation can be used to separate a mixture of two solids
C. Filtration can be used to separate a soluble solid from its solvent
D. The method of separation depends on the properties of the components
Correct Answer: D (The choice of a separation technique is dictated by the physical and chemical properties of the components in the mixture, such as solubility, boiling point, density, magnetic properties, etc.).

47. A mixture of ethanol (b.p. 78°C) and propanol (b.p. 97°C) can be best separated by?
A. Simple distillation
B. Fractional distillation
C. Evaporation
D. Separating funnel
Correct Answer: B (While their boiling points differ by 19°C, they are both miscible liquids. A fractionating column would ensure a more efficient separation than simple distillation).

48. The process by which a solvent passes through a semi-permeable membrane from a dilute solution to a concentrated solution is called?
A. Diffusion
B. Osmosis
C. Filtration
D. Chromatography
Correct Answer: B (Osmosis is the specific movement of solvent molecules from a region of lower solute concentration (dilute solution) to a region of higher solute concentration (concentrated solution) through a semi-permeable membrane).

49. Drying agents like calcium chloride are used in the laboratory to?
A. Filter mixtures
B. Remove water from gases or organic liquids
C. Speed up reactions
D. Increase solubility
Correct Answer: B (Anhydrous calcium chloride is a common desiccant (drying agent) used to absorb moisture from air or to dry organic liquids by removing traces of water).

50. Fractional distillation is different from simple distillation because fractional distillation uses a?
A. Condenser
B. Conical flask
C. Fractionating column
D. Thermometer
Correct Answer: C (The key apparatus that distinguishes fractional distillation from simple distillation is the fractionating column, which provides a large surface area for multiple condensations and evaporations).

26/10/2026

Drop your Answer in the comments section 👇👇👇.

25/10/2026

Drop your answer in the comments section 👇👇👇👇.

24/10/2026

Only Genius can solve this correctly. Drop your answer in the comments section below 👇👇👇

24/10/2026

Subscribe to get exclusive benefits:
https://www.facebook.com/100046488776498/subscribenow

24/10/2026

Study this. It might be helpful

24/10/2026

Beautiful explanation. This might be helpful

24/10/2026

Likely Jamb Questions on Digestive System and Feeding Habit of Different Organims

1. The mode of nutrition in which an organism obtains its food from dead and decaying organic matter is
A. Holozoic
B. Parasitic
C. Saprophytic
D. Chemosynthetic
Correct Answer: C
Explanation: Saprophytic nutrition involves feeding on dead and decaying organic matter. Fungi and many bacteria exhibit this mode of nutrition.

2. Which of the following organisms exhibits holozoic mode of nutrition?
A. Rhizopus
B. Tapeworm
C. Amoeba
D. Loranthus
Correct Answer: C
Explanation: Holozoic nutrition involves the ingestion of complex organic food, which is then digested and absorbed. Amoeba, like humans and other animals, feeds in this way .

3. The process by which an organism feeds on another living organism without immediately killing it is known as
A. Predation
B. Parasitism
C. Saprophytism
D. Autotrophism
Correct Answer: B
Explanation: Parasitism is a symbiotic relationship where one organism (the parasite) lives on or in another (the host), deriving nutrients at the host's expense, usually without immediately killing it .

4. A plant that has a sundew and a bladderwort is
A. Parasitic
B. Saprophytic
C. Chemosynthetic
D. Carnivorous
Correct Answer: D
Explanation: Carnivorous plants like sundew and bladderwort supplement their nutrition by trapping and digesting small animals, usually insects, to obtain nitrogen .

5. The correct sequence of the alimentary canal in humans is
A. Mouth ----- Oesophagus --- Stomach --- Ileum --- Duodenum ---- Colon ---- Re**um
B. Mouth ----- Oesophagus ---- Stomach ---- Duodenum ---- Ileum ---- Colon ---- Re**um
C. Mouth --- Stomach --- Oesophagus --- Duodenum --- Ileum --- Re**um --- Colon
D. Mouth --- Oesophagus --- Duodenum --- Stomach --- Ileum --- Colon --- Re**um
Correct Answer: B
Explanation: The correct order of the human alimentary canal is: Mouth, Oesophagus (gullet), Stomach, Small intestine (Duodenum --- Ileum --- jejunum), Large intestine (Colon), and Re**um .

6. One of the major structural differences between the alimentary canal of a bird and that of a human is the presence of a
A. Stomach in humans which is absent in birds
B. Crop in birds which is absent in humans
C. Caecum in birds which is absent in humans
D. Small intestine in humans which is absent in birds
Correct Answer: B
Explanation: Birds possess a crop for storing and softening food, a feature absent in humans. Humans have a mouth with teeth, which birds lack, having a beak instead .

7. The function of the hydrochloric acid produced by the stomach is to
A. Digest proteins into peptides
B. Activate pepsinogen to pepsin and kill bacteria
C. Emulsify fats
D. Absorb digested food
Correct Answer: B
Explanation: Hydrochloric acid in the stomach creates an acidic medium that activates the inactive enzyme pepsinogen into active pepsin. It also helps to kill harmful bacteria ingested with food .

8. Which of the following enzymes is responsible for the curdling of milk in the stomach of infants?
A. Pepsin
B. Trypsin
C. Rennin
D. Amylase
Correct Answer: C
Explanation: Rennin is an enzyme present in the gastric juice of infants. It coagulates or curdles the milk protein casein, slowing its passage through the stomach to allow more time for digestion by pepsin .

9. The pancreatic juice contains all of the following enzymes EXCEPT
A. Trypsin
B. Lipase
C. Amylase
D. Maltase
Correct Answer: D
Explanation: Pancreatic juice contains trypsin (for proteins), lipase (for fats), and pancreatic amylase (for starch). Maltase is produced by the small intestine, not the pancreas .

10. The role of bile in digestion is primarily to
A. Digest proteins into amino acids
B. Emulsify fats into tiny droplets
C. Break down starch into maltose
D. Neutralize acidic chyme
Correct Answer: B
Explanation: Bile, produced by the liver, does not contain enzymes. Its main function is emulsification, which is the breakdown of large fat droplets into smaller ones, increasing the surface area for the action of lipase.

11. The end product of carbohydrate digestion is
A. Amino acids
B. Fatty acids and glycerol
C. Simple sugars/Glucose
D. Peptides
Correct Answer: C
Explanation: Carbohydrates are broken down by enzymes like amylase, maltase, and sucrase into their simplest form, which are monosaccharides like glucose, fructose, and galactose .

12. The end product of protein digestion is
A. Glucose
B. Fatty acids and glycerol
C. Amino acids
D. Maltose
Correct Answer: C
Explanation: Proteins are long chains of amino acids. Digestive enzymes like pepsin and trypsin break these chains down into smaller peptides and finally into individual amino acids, which are then absorbed .

13. The part of the human gut where most absorption of digested food takes place is the
A. Stomach
B. Large intestine
C. Ileum (small intestine)
D. Colon
Correct Answer: C
Explanation: The ileum, which is the latter part of the small intestine, is highly adapted for absorption with its long length, villi, and microvilli that greatly increase the surface area.

14. The structure in the small intestine that increases the surface area for absorption is the
A. Villi
B. Cilia
C. Rugae
D. Sphincter
Correct Answer: A
Explanation: The inner lining of the small intestine has millions of tiny, finger-like projections called villi. They greatly increase the surface area for the efficient absorption of digested food.

15. Which of the following is a function of the liver in digestion?
A. Production of digestive enzymes
B. Storage of glycogen and production of bile
C. Absorption of water
D. Churning of food
Correct Answer: B
Explanation: The liver performs many functions, including the production of bile (stored in the gall bladder) and the regulation of blood sugar by storing excess glucose as glycogen .

16. The stomach of a goat is characterized by having
A. One compartment
B. Two compartments
C. Three compartments
D. Four compartments
Correct Answer: D
Explanation: Goats are ruminant mammals. Their stomach is divided into four compartments: the rumen, reticulum, omasum, and abomasum .

17. The correct sequence of the four compartments of a ruminant's stomach is
A. Rumen, Omasum, Abomasum, Reticulum
B. Reticulum, Rumen, Abomasum, Omasum
C. Rumen, Reticulum, Omasum, Abomasum
D. Omasum, Abomasum, Rumen, Reticulum
Correct Answer: C
Explanation: The first and largest compartment is the rumen, followed by the reticulum (together forming the reticulo-rumen), then the omasum, and finally the abomasum, which is the "true stomach" .

18. The function of the rumen in cattle is to
A. Secrete digestive enzymes for proteins
B. Digest cellulose with the aid of bacteria
C. Absorb water and minerals
D. Store bile
Correct Answer: B
Explanation: The rumen houses a large population of symbiotic bacteria and protozoa that produce the enzyme cellulase, which breaks down cellulose from plant material into absorbable compounds .

19. The "true stomach" of a ruminant is the
A. Rumen
B. Reticulum
C. Omasum
D. Abomasum
Correct Answer: D
Explanation: The abomasum is the fourth compartment and is glandular, similar to the stomach of monogastric animals (like humans), secreting digestive juices to break down proteins .

20. The process by which a ruminant regurgitates food from the rumen back to the mouth for further chewing is called
A. Mastication
B. Rumination
C. Egestion
D. Peristalsis
Correct Answer: B
Explanation: Rumination, also known as "chewing the cud," is the process where the animal brings up soft food boluses from the rumen to the mouth to be chewed again to further break down plant fibers .

21. The dental formula of an animal is primarily adapted to its
A. Habitat
B. Size
C. Feeding habits
D. Age
Correct Answer: C
Explanation: An animal's dentition (type, number, and arrangement of teeth) is a key adaptation to its diet, reflecting whether it is a herbivore, carnivore, or omnivore .

22. A herbivore is characterized by the absence of
A. Molars
B. Premolars
C. Canines
D. Incisors
Correct Answer: C
Explanation: Herbivores typically have reduced or absent canines. The space where canines would be is called a diastema, which aids in manipulating plant material .

23. The adaptation of herbivores for grinding grass is the possession of
A. Sharp incisors
B. Broad ridged molars
C. Pointed canines
D. H***y pad
Correct Answer: B
Explanation: Herbivores have broad, ridged, or cusped molars and premolars (cheek teeth) that create a large grinding surface for crushing tough, fibrous plant material .

24. In herbivores, the h***y pad is a structure that works with the
A. Upper incisors
B. Lower incisors
C. Canines
D. Molars
Correct Answer: B
Explanation: In many herbivores like sheep, the upper incisors are absent. They have a hard, h***y pad on the upper jaw, against which the sharp lower incisors bite to cut grass.

25. The dental formula of a dog (a carnivore) is characterized by the presence of well-developed
A. Incisors for gnawing
B. Premolars for grinding
C. Canines for tearing flesh
D. Molars for cutting
Correct Answer: C
Explanation: Carnivores possess long, pointed, and strong canine teeth, which are used for holding, killing prey, and tearing flesh. Their cheek teeth (carnassials) are also adapted for shearing.

26. The process by which Amoeba ingests its food is known as
A. Pinocytosis
B. Phagocytosis
C. Exocytosis
D. Diffusion
Correct Answer: B
Explanation: Amoeba feeds by phagocytosis, often called "cell-eating." It uses its pseudopodia to flow around and engulf a food particle, enclosing it in a food vacuole .

27. The structure in Amoeba where digestion of food takes place is the
A. Nucleus
B. Contractile vacuole
C. Food vacuole
D. Cell membrane
Correct Answer: C
Explanation: After phagocytosis, the food particle is contained within a food vacuole. Enzymes are secreted into this vacuole to digest the food, and the nutrients are then absorbed into the cytoplasm .

28. Hydra uses its ________ to capture its prey.
A. Pseudopodia
B. Tentacles with nematocysts
C. Parapodia
D. Cilia
Correct Answer: B
Explanation: Hydra has tentacles surrounding its mouth that are armed with specialized stinging cells called cnidocytes, which contain nematocysts (stinging structures) to paralyze prey .

29. In Hydra, digestion is
A. Only intracellular
B. Only extracellular
C. Both extracellular and intracellular
D. Carried out by bacteria
Correct Answer: C
Explanation: Digestion in Hydra is first extracellular. Enzymes are secreted into the gastrovascular cavity to break down the prey. The partially digested food particles are then engulfed by cells lining the cavity, where digestion is completed intracellularly .

30. The mode of feeding in tapeworm is best described as
A. Holozoic
B. Saprophytic
C. Parasitic
D. Autotrophic
Correct Answer: C
Explanation: The tapeworm (Taenia) is an endoparasite that lives in the intestine of its host (e.g., humans). It has no digestive system and absorbs already-digested nutrients directly through its body surface .

31. A structural adaptation for a parasitic mode of life seen in tapeworm is the
A. Presence of a mouth
B. Long alimentary canal
C. Absence of digestive system
D. Presence of pseudopodia
Correct Answer: C
Explanation: Tapeworms have lost their digestive system through evolution because they live in a habitat (the host's gut) where food is already digested. They absorb nutrients directly through their body surface .

32. Which of the following insects has mouthparts adapted for biting and chewing?
A. Mosquito
B. Butterfly
C. Cockroach
D. Housefly
Correct Answer: C
Explanation: Cockroaches have mandibulate (biting and chewing) mouthparts, consisting of strong jaws (mandibles) for cutting and chewing solid food. Mosquitoes, butterflies, and houseflies have sucking mouthparts .

33. The mouthpart of a butterfly is described as
A. Biting and chewing
B. Piercing and sucking
C. Sponging and lapping
D. Siphoning
Correct Answer: D
Explanation: Butterflies have a long, coiled, tube-like mouthpart called a proboscis, which they uncoil to siphon (suck) nectar from flowers. This is known as siphoning mouthparts .

34. A mosquito feeds by using its mouthpart which is adapted for
A. Chewing and biting
B. Sponging
C. Piercing and sucking
D. Filter feeding
Correct Answer: C
Explanation: The female mosquito has mouthparts modified into a sharp, needle-like proboscis that can pierce the skin of animals to suck blood .

35. The malpighian tubules in insects are involved in
A. Digestion
B. Respiration
C. Excretion
D. Circulation
Correct Answer: C
Explanation: Malpighian tubules are the excretory structures in insects, located at the junction of the midgut and hindgut. They remove nitrogenous waste from the body .

36. The villi in the small intestine of mammals are most essential for
A. Digesting fats
B. Trapping food particles
C. Increasing the surface area for absorption
D. Secreting intestinal juices
Correct Answer: C
Explanation: The primary function of the millions of villi lining the small intestine is to vastly increase the surface area available for the absorption of digested food molecules into the bloodstream and lymphatic system.

37. Egestion is best described as the
A. Removal of metabolic waste from the body
B. Removal of undigested food material from the body
C. Process of taking food into the body
D. Breakdown of complex food substances
Correct Answer: B
Explanation: Egestion is the elimination of undigested food materials (f***s) from the digestive tract through the a**s. This is different from excretion, which is the removal of metabolic wastes .

38. Assimilation of food refers to the
A. Breaking down of large molecules into smaller ones
B. Movement of digested food into the blood
C. Incorporation of absorbed food into the body's cells/tissues
D. Removal of undigested materials
Correct Answer: C
Explanation: Assimilation is the process by which absorbed nutrients (e.g., amino acids, glucose) are taken up from the blood by body cells and used to build new protoplasm, repair tissues, or release energy .

39. A deficiency of which vitamin is associated with the disease Scurvy?
A. Vitamin A
B. Vitamin B
C. Vitamin C
D. Vitamin D
Correct Answer: C
Explanation: Scurvy is a disease resulting from a deficiency of Vitamin C (ascorbic acid). Its symptoms include bleeding gums, slow wound healing, and swollen joints .
40. A diet lacking in protein can cause a disease called
A. Rickets
B. Scurvy
C. Kwashiorkor
D. Anaemia
Correct Answer: C
Explanation: Kwashiorkor is a form of severe malnutrition caused by a deficiency of protein in the diet, despite adequate calorie intake. It is common in children .
41. The part of the plant where food is stored in a carrot is the
A. Stem
B. Leaf
C. Root
D. Seed
Correct Answer: C
Explanation: Carrots store food (sugars and starches) in their taproot, which is swollen for this purpose. Other examples of food-storing roots are cassava and sweet potatoes .

42. In which part of a groundnut plant is food stored?
A. Root
B. Seed
C. Leaf
D. Stem
Correct Answer: B
Explanation: Groundnuts (peanuts) store food (oils and proteins) in their seeds (the nuts themselves) .

43. The organ that produces sodium bicarbonate to neutralize chyme in the duodenum is the
A. Liver
B. Stomach
C. Pancreas
D. Gall bladder
Correct Answer: C
Explanation: The pancreas produces pancreatic juice which contains sodium bicarbonate. This alkaline substance neutralizes the acidic chyme (partially digested food) coming from the stomach, providing the optimum pH for pancreatic enzymes to work .

44. The following are functions of the pancreas EXCEPT
A. Production of insulin
B. Production of digestive enzymes
C. Production of bile
D. Production of glucagon
Correct Answer: C
Explanation: The pancreas is both an endocrine (producing insulin and glucagon) and an exocrine (producing digestive enzymes) gland. Bile is produced by the liver, not the pancreas .

45. A young mammal first feeding on its mother's milk is an example of what type of nutrition?
A. Autotrophic
B. Holozoic
C. Saprophytic
D. Parasitic
Correct Answer: B
Explanation: Holozoic nutrition involves the ingestion of liquid or solid organic food. A mammal feeding on milk is a clear example of this heterotrophic mode of nutrition .

46. Which of the following is a micro-nutrient required by plants?
A. Carbon
B. Nitrogen
C. Molybdenum
D. Phosphorus
Correct Answer: C
Explanation: Micro-nutrients are elements required by plants in very small quantities. Examples include Molybdenum, Zinc, Boron, and Copper. Nitrogen, Phosphorus, and Carbon are macro-nutrients (required in large amounts) .

47. The absence of phosphorus in plants can cause
A. Stunted growth and poor root development
B. Yellowing of leaves (chlorosis)
C. Poor flowering and fruit development
D. Increased susceptibility to disease
Correct Answer: A
Explanation: Phosphorus is a macronutrient essential for energy transfer, photosynthesis, and nutrient movement. A deficiency typically results in stunted growth, weak roots, and delayed maturity .

48. The experiment to test for the presence of starch in a leaf uses
A. Iodine solution
B. Benedict's solution
C. Million's reagent
D. Sodium hydroxide
Correct Answer: A
Explanation: Iodine solution is the indicator used to test for the presence of starch. It turns from yellowish-brown to a blue-black color in the presence of starch .

49. A food sample tested with Benedict's solution gave an orange precipitate. This indicates the presence of
A. Starch
B. Protein
C. Reducing sugar
D. Fat
Correct Answer: C
Explanation: Benedict's solution is used to test for reducing sugars (like glucose, maltose, and fructose). When heated with a reducing sugar, it changes color from blue to green, yellow, orange, or brick-red precipitate, depending on the concentration .

50. The enzyme ptyalin (salivary amylase) acts on cooked starch at an optimum pH of about
A. 2.0 (acidic)
B. 7.0 (neutral)
C. 8.5 (alkaline)
D. 4.0 (acidic)
Correct Answer: B
Explanation: Salivary amylase (ptyalin) works best in a neutral or slightly acidic environment. It becomes inactive in the highly acidic environment of the stomach .

Address

20, Esu Street
Eket
AFAHAEKET,AKWAIBOM,

Telephone

08108159580

Website

facebook.com

Alerts

Be the first to know and let us send you an email when Anesco Maths and Science Tutorial posts news and promotions. Your email address will not be used for any other purpose, and you can unsubscribe at any time.