POST UTME CALEB UNIVERSITY 2022 Biology | Objective

Are you preparing for POST UTME CALEB UNIVERSITY 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
In a population of 1000 individuals, 70% are homozygous dominant (BB), 20% are heterozygous (Bb), and 10% are homozygous recessive (bb). What is the frequency of the recessive allele (b) in this population?
Correct A. 0.10
B. 0.20
C. 0.30
D. 0.40

Correct Answer: A

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Question 2
A diagram of a plant cell is shown below. Identify the structure labeled 'A'.
A. Mitochondria
B. Chloroplast
Correct C. Nucleus
D. Vacuole

Correct Answer: C

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Question 3
A 5% solution of glu\cose is prepared by dissolving 5 grams of glu\cose in 95 grams of water. What is the mass of glu\cose in a 250 mL solution?
A. 5.00 g
Correct B. 6.25 g
C. 7.50 g
D. 10.00 g

Correct Answer: B

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Question 4
A diagram of a simple harmonic motion is shown below. Identify the type of motion.
Correct A. Simple Harmonic Motion
B. Damped Harmonic Motion
C. Forced Harmonic Motion
D. Oscillatory Motion

Correct Answer: A

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Question 5
A 2.5 L solution of HCl is prepared by dissolving 25 grams of HCl in 2.5 L of water. What is the molarity of the solution?
A. 0.10 M
Correct B. 0.20 M
C. 0.30 M
D. 0.40 M

Correct Answer: B

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Question 6
In the context of sense organs, what is the primary function of the olfactory epithelium?
A. To detect changes in air pressure
B. To convert sound waves into electrical signals
Correct C. To detect chemical particles in the air
D. To regulate body temperature

Correct Answer: C

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Question 7
A plant's xylem is responsible for transporting water and minerals from the roots to the leaves. What is the primary mechanism by which this occurs?
Correct A. Transpiration pull
B. Root pressure
C. Capillary action
D. Osmosis

Correct Answer: A

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Question 8
In genetics, what is the term for the process by which an organism's genetic information is passed from one generation to the next?
A. Mutation
B. Gene expression
C. Heritability
Correct D. Inheri\tance

Correct Answer: D

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Question 9
A tissue is a group of cells that work together to perform a specific function. What is the primary function of the epithelial tissue?
A. To provide support and structure
Correct B. To facilitate the exchange of subs\tances
C. To contract and move the body
D. To store energy

Correct Answer: B

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Question 10
Photosynthesis is the process by which plants convert light energy into chemical energy. What is the primary byproduct of this process?
Correct A. Glu\cose
B. Oxygen
C. Water
D. Nitrogen

Correct Answer: A

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Question 11
In a population of Drosophila melanogaster, the frequency of the recessive allele 'a' is 0.2. If the population is in Hardy-Weinberg equilibrium, what is the frequency of the homozygous dominant genotype 'AA'?
Correct A. 0.64
B. 0.36
C. 0.16
D. 0.04

Correct Answer: A

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Question 12
A plant with the genotype 'Tt' is crossed with a plant with the genotype 'Tt'. What is the probability that the offspring will have the genotype 'tt'?
A. 0.25
Correct B. 0.5
C. 0.75
D. 0.9

Correct Answer: B

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Question 13
A diagram of a plant's xylem and phloem tissues is shown below. Which of the following statements is true about the xylem tissue?
Correct A. It transports water and minerals from the roots to the leaves.
B. It transports sugars and other organic compounds from the leaves to the rest of the plant.
C. It is responsible for the plant's defense against pathogens.
D. It is involved in the plant's response to environmental stimuli.

Correct Answer: A

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Question 14
A diagram of the human eye is shown below. Which of the following statements is true about the structure of the eye?
A. The cornea is the transparent outer layer of the eye.
Correct B. The iris is the colored part of the eye that controls the amount of light that enters the eye.
C. The retina is the innermost layer of the eye that contains the photoreceptors.
D. The lens is the flexible structure that changes shape to focus light on the retina.

Correct Answer: B

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Question 15
A diagram of the human digestive system is shown below. Which of the following statements is true about the small intestine?
A. It is the longest part of the digestive system.
B. It is responsible for the breakdown of proteins into amino acids.
Correct C. It is where most of the nutrient absorption takes place.
D. It is the part of the digestive system where water and electrolytes are absorbed.

Correct Answer: C

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Question 16
In a typical plant cell, the vacuole is involved in which of the following processes?
A. Storage of nutrients
Correct B. Regulation of cell turgor pressure
C. Production of digestive enzymes
D. Maintenance of cell shape

Correct Answer: B

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Question 17
A 2.5 L flask contains 0.25 mol of CO2 at 25°C. What is the partial pressure of CO2 in the flask?
Correct A. 0.25 atm
B. 0.50 atm
C. 0.75 atm
D. 1.00 atm

Correct Answer: A

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Question 18
In the nervous system, what is the primary function of the synapse?
Correct A. Transmission of nerve impulses
B. Storage of nerve impulses
C. Regulation of nerve impulses
D. Maintenance of nerve impulses

Correct Answer: A

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Question 19
A 0.5 M solution of glu\cose is prepared by dissolving 18 g of glu\cose in 100 mL of water. What is the molarity of the solution?
A. 0.1 M
Correct B. 0.5 M
C. 1.0 M
D. 5.0 M

Correct Answer: B

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Question 20
In the human body, what is the primary function of the pancreas?
Correct A. Regulation of blood sugar levels
B. Production of digestive enzymes
C. Storage of nutrients
D. Maintenance of blood pressure

Correct Answer: A

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Question 21
The diagram below shows the structure of the human eye. Which part of the eye is responsible for detecting light?
A. Cornea
B. Iris
Correct C. Retina
D. Lens

Correct Answer: C

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Question 22
The process of excretion in humans involves the removal of waste products from the body. Which of the following organs is NOT involved in this process?
A. Kidneys
B. Liver
C. Skin
Correct D. Heart

Correct Answer: D

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Question 23
The diagram below shows the structure of a plant cell. What is the function of the cell wall?
Correct A. Provides structural support
B. Regulates the movement of materials in and out of the cell
C. Stores water and nutrients
D. Produces energy for the cell

Correct Answer: A

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Question 24
The process of osmoregulation in humans involves the regulation of the balance of fluids in the body. Which of the following organs is responsible for this process?
Correct A. Kidneys
B. Liver
C. Skin
D. Heart

Correct Answer: A

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Question 25
The diagram below shows the structure of a neuron. What is the function of the d\endrites?
Correct A. Receive signals from other neurons
B. Transmit signals to other neurons
C. Generate electrical impulses
D. Store information

Correct Answer: A

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