Exam Body

Year

Subject

Paper Type

UTME 2022 Biology | Objective

Are you preparing for UTME exams? Reviewing past questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2022 Biology (Objective) questions designed to simulate the real exam environment.

Practice these randomly selected questions to test your readiness.

Question 1

The cilia in paramecium are used for

A. respirating

Correct B. locomotion

C. protection

D. regulating food intake.

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 2

Which of the substances listed below is a trace element for plants?

A. Potassium

B. Sodium

Correct C. Copper

D. Phosphate

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 3

Milk can be pasteurized by

A. the addition of common salt

B. boiling for one hour

Correct C. heating to \( 75^{\circ} \mathrm{C} \) for 20 minutes

D. the addition of vinegar.

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 4

In a bakery, yeast is added to flour to make bread rise. This is possible because yeast produces

A. alcohol

B. oxygen

Correct C. carbon dioxide

D. ethanol.

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 5

Which of these food chains is NOT possible in a forest?

Correct A. Diatom → fly → toad → snake

B. Fly → toad → snake → hawk

C. Leaves → caterpillar → bird → lion

D. Leaves → goat → man → lion

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 6

In woody plants, gases and water vapour are transported across the stems by the

A. xylem fibres

Correct B. medullary rays

C. sieve tubes

D. phloem parenchyma.

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 7

A mixture of mercurous and mercuric nitrates is added to a food substance. A white precipitate is formed which on gentle heating turns red. The food substance is

Correct A. protein

B. oil

C. carbohydrate

D. fat.

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 8

Identify which of the following are characteristics of the vertebrate respiratory surface. 1. Moist 2. Vascularized 3. Semi-permeable 4. Freely permeable 5. Dry

Correct A. 1,2,3

B. 1,2,5

C. 2,3,5

D. 2,4,5.

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 9

Evidence that a tooth is a living part of the mammalian body can be found within the

A. gum

Correct B. pulp cavity

C. cement

D. enamel.

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 10

In the standard experiment to show that oxygen is given off during photosynthesis, sodium bicarbonate is used to

A. neutralize the acid in water

B. supply mineral salt to water plant

Correct C. supply carbon dioxide for photosynthesis

D. kill micro-organisms in water.

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 11

The radicle of a bean seedling grows most rapidly in the region

A. of the root tip

Correct B. just above the root tip

C. just around the root tip

D. just below the root tip.

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 12

If a healthy potted plant is continuously kept in dim light -

Correct A. the rate of respiration may equal that of photosynthesis

B. more carbon dioxide and water are taken in

C. respiration may be halted

D. the volume of oxygen released increases.

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 13

Which set of diseases is spread mainly by insect vectors?

A. Cholera, tenia and gonorrhoea

B. Poliomyelitis, tuberculosis and syphilis

C. Cholera, malaria and tuberculosis

Correct D. Malaria, cholera and river blindness.

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 14

Which of the following is a plant excretory product?

A. Oil

B. Cytokinin

Correct C. Resin

D. Amino acids.

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 15

Pawpaw seeds, collected from a tree with many desirable agronomic qualities did not give rise to plants of desirable characters as the parent because

A. seeds are not reliable for propagating plants

Correct B. uncontrolled out-crossing can introduce unwanted variability

C. vegetative propagation is the best form of reproduction for all crops

D. seeds were not physiologically mature at harvest.

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 16

The main function of the petal of a flower is to

Correct A. attract pollination agents

B. protect the flower while still in bud

C. serve as landing stage for insects

D. protect the inner pairs from desiccation.

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 17

The \( F_{1} \) of a cross between a tall and a dwarf plant was tall. The \( F_{1} \) was advanced to \( F_{2} \). How many of \( 120 F_{2} \) plants will be dwarf?

Correct A. 30

B. 60

C. 90

D. 120

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 18

In a drought situation, plants suffer from water stress which could result in

Correct A. reduced biochemical activities

B. enhanced chemical activities

C. enhanced microbial activities

D. reduced phototropic activities.

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 19

The Southern Guinea Savanna differs from the Northern Guinea Savanna in that it has

A. lower rainfall and shorter grasses

B. less grasses and scattered trees

Correct C. more rainfall and taller grasses

D. less arboreal and burrowing animals.

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 20

Which of the following movements occur during exhalation?

Correct A. The diaphragm and intercostal muscles relax

B. The thoracic cavity increases in volume

C. The diaphragm and intercostal muscles contract

D. The diaphragm contracts and the intercostal muscles relax.

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 21

After a meal of yam has been digested, the highest concentration of glucose is to be found in the

A. hepatic artery

B. pulmonary vein

Correct C. hepatic portal vein

D. posterior vena cava

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 22

In an experiment to estimate the volume of air in a soil sample using a measuring cylinder, it was found that: Initial volume of water \( =\mathrm{p} \mathrm{cm}^{3} \) Volume of soil before mixing with water \( =\mathrm{q} \mathrm{cm}^{3} \) Final volume of water after adding soil \( =r \mathrm{~cm}^{3} \) From the data above, which of the following deductions is correct?

A. \( r=p+q \)

B. \( r>p+q \)

Correct C. \( q=r-p \)

D. \( r

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 23

A freshwater pond may contain

A. tadpole, water boatman, leeches and crab

B. water beetle, shrimps water snail and water bug

Correct C. water lily, fish, water scorpion and dragonfly larva

D. pond skater, water lily, shark and mosquito larva.

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 24

The structure that is common in the embryos of mammals, amphibians, birds, fishes and reptiles and which is an evidence of their common ancestry is the

A. eye

B. chorion

C. allantois

Correct D. gill-slits.

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Question 25

The most important hormone that induces the ripening of fruit is

Correct A. Ethylene

B. Indole acetic acid

C. Gibberallin

D. Cytokinin.

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows

Help others prepare! Share this practice hub:

Chat with Support