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POST UTME EKSU 2018 Biology | Objective

Are you preparing for POST UTME EKSU exams? Reviewing past questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2018 Biology (Objective) questions designed to simulate the real exam environment.

Practice these randomly selected questions to test your readiness.

Question 1

In a eukaryotic cell, the process of cell division that results in the production of four daughter cells is known as

Correct A. Mitosis

B. Meiosis

C. Binary Fission

D. Endoreduplication

Correct Answer: A

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Question 2

The diagram below shows the structure of a plant cell. Identify the part labeled A

A. Cell Wall

B. Cytoplasm

Correct C. Nucleus

D. Mitochondria

Correct Answer: C

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Question 3

The process by which an organism's genetic information is passed from one generation to the next is known as

A. Mutation

B. Genetic Drift

C. Gene Expression

Correct D. Heritability

Correct Answer: D

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Question 4

In a typical human cell, the process of cell division that results in the production of two daughter cells is known as

Correct A. Mitosis

B. Meiosis

C. Binary Fission

D. Endoreduplication

Correct Answer: A

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Question 5

The diagram below shows the structure of a prokaryotic cell. Identify the part labeled A

A. Cell Wall

Correct B. Cytoplasm

C. Nucleus

D. Mitochondria

Correct Answer: B

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Question 6

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. 0.36

B. 0.64

C. 0.72

D. 0.84

Correct Answer: A

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Question 7

A diagram of the human eye is shown below. Which part of the eye is responsible for adjusting the size of the pupil?

A. Cornea

Correct B. Iris

C. Retina

D. Optic nerve

Correct Answer: B

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Question 8

In a freshwater e\cosystem, the primary producers are phytoplankton. What is the role of phytoplankton in the e\cosystem?

A. Decomposers

B. Primary consumers

Correct C. Primary producers

D. Secondary consumers

Correct Answer: C

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Question 9

A diagram of the human kidney is shown below. Which part of the kidney is responsible for filtering waste products from the blood?

Correct A. Nephron

B. Renal pelvis

C. Ureter

D. Bladder

Correct Answer: A

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Question 10

In a desert e\cosystem, the primary consumers are insects. What is the role of insects in the e\cosystem?

A. Decomposers

Correct B. Primary consumers

C. Primary producers

D. Secondary consumers

Correct Answer: B

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Question 11

In a diploid cell, what is the total number of chromosomes in the zygote after meiosis?

Correct A. 46

B. 23

C. 92

D. 69

Correct Answer: A

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Question 12

A plant cell undergoes mitosis. What is the number of chromosomes in the daughter cells?

Correct A. 46

B. 92

C. 23

D. 69

Correct Answer: A

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Question 13

A geneticist wants to study the inheri\tance of a trait in a population. What type of genetic cross would be most appropriate?

Correct A. Test cross

B. Backcross

C. Inbreeding

D. Selective breeding

Correct Answer: A

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Question 14

A nerve impulse travels from the d\endrite to the axon terminal. What type of synapse is this?

A. D\endro-d\endritic synapse

B. Axo-axonic synapse

Correct C. Axo-somatic synapse

D. Axo-axonic synapse

Correct Answer: C

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Question 15

A person has a blood pressure of 120/80 mmHg. What is the diastolic pressure?

Correct A. 80

B. 120

C. 100

D. 140

Correct Answer: A

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Question 16

The process of osmoregulation in animals involves the regulation of water and salt balance in the body. Which of the following is a primary mechanism of osmoregulation in the kidneys?

A. Reabsorption of water in the proximal convoluted tubule

B. Secretion of potassium ions in the distal convoluted tubule

Correct C. Reabsorption of sodium ions in the loop of Henle

D. Excretion of urea in the collecting duct

Correct Answer: C

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Question 17

In the context of evolutionary theory, which of the following is an example of a convergent adaptation?

Correct A. The development of wings in birds and insects

B. The evolution of the eye in different species

C. The adaptation of the human nose to filter out dust and pollen

D. The development of the human brain to process complex information

Correct Answer: A

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Question 18

The sense organ responsible for detecting changes in sound waves is the?

Correct A. Ear

B. Eye

C. Nose

D. Tongue

Correct Answer: A

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Question 19

The process of digestion in the small intestine involves the breakdown of proteins into?

A. Carbohydrates

B. Fats

Correct C. Amino acids

D. Nucleic acids

Correct Answer: C

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Question 20

The hormone responsible for regulating blood sugar levels is?

Correct A. Insulin

B. Glucagon

C. Adrenaline

D. Thyroid hormone

Correct Answer: A

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Question 21

In the context of photosynthesis, what is the primary function of the thylakoid membranes in the chloroplast?

Correct A. To synthesize ATP and NADPH

B. To synthesize glu\cose and oxygen

C. To transport water and minerals into the plant

D. To regulate stomatal opening and clo\sing

Correct Answer: A

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Question 22

A bio\logist studying the structure of a plant cell notices that the cell wall is composed of a rigid layer of cellulose. What is the primary function of this layer?

Correct A. To provide structural support to the cell

B. To regulate the movement of water and minerals into the cell

C. To synthesize ATP and NADPH

D. To synthesize glu\cose and oxygen

Correct Answer: A

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Question 23

A researcher is studying the process of digestion in the human body. What is the primary function of the enzyme amylase in the mouth?

A. To break down proteins into amino acids

Correct B. To break down carbohydrates into simple sugars

C. To break down fats into fatty acids and glycerol

D. To synthesize ATP and NADPH

Correct Answer: B

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Question 24

A bio\logist is studying the process of respiration in the human body. What is the primary function of the mitochondria in the cell?

Correct A. To synthesize ATP and NADPH

B. To break down carbohydrates into simple sugars

C. To break down fats into fatty acids and glycerol

D. To regulate the movement of water and minerals into the cell

Correct Answer: A

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Question 25

A researcher is studying the process of reproduction in plants. What is the primary function of the stigma in the flower?

A. To produce pollen

Correct B. To receive pollen

C. To produce ovules

D. To regulate stomatal opening and clo\sing

Correct Answer: B

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