POST UTME EKSU 2022 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 2022 Biology (Objective) questions designed to simulate the real exam environment.

Practice these randomly selected questions to test your readiness.

Question 1
In the xylem, what is the primary function of the tracheids?
Correct A. Transporting water and minerals from the roots to the leaves
B. Producing sugars through photosynthesis
C. Storing starch and proteins
D. Regulating the opening and clo\sing of stomata

Correct Answer: A

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Question 2
What is the term for the process by which plants release water vapor into the air?
Correct A. Transpiration
B. Respiration
C. Photosynthesis
D. Evaporation

Correct Answer: A

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Question 3
In the human body, what is the primary function of the hypothalamus?
A. Regulating body temperature
B. Controlling hunger and thirst
C. Producing hormones that stimulate growth and development
Correct D. Coordinating the body's responses to stress

Correct Answer: D

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Question 4
What is the term for the process by which microorganisms break down dead organic matter?
Correct A. Decomposition
B. Fermentation
C. Putrefaction
D. Autolysis

Correct Answer: A

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Question 5
What is the term for the process by which plants adapt to their environment?
A. Evolution
B. Mutation
C. Genetic drift
Correct D. Natural selection

Correct Answer: D

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Question 6
In the process of osmoregulation, the kidneys play a crucial role in maintaining the balance of electrolytes and water in the body. Which of the following is a key mechanism by which the kidneys regulate electrolyte balance?
Correct A. Reabsorption of sodium ions in the proximal convoluted tubule
B. Secretion of potassium ions in the distal convoluted tubule
C. Excretion of chloride ions in the collecting duct
D. Reabsorption of calcium ions in the loop of Henle

Correct Answer: A

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Question 7
A cell is placed in a solution with a higher concentration of glu\cose than its internal environment. What will happen to the cell?
A. The cell will shrink due to water loss
Correct B. The cell will swell due to water uptake
C. The cell will remain unchanged
D. The cell will undergo apoptosis

Correct Answer: B

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Question 8
A diagram of a plant cell is shown below. What is the function of the structure labeled 'X'?
A. Site of protein synthesis
B. Site of lipid synthesis
Correct C. Site of carbohydrate synthesis
D. Site of DNA replication

Correct Answer: C

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Question 9
A diagram of a human kidney is shown below. What is the function of the structure labeled 'Y'?
Correct A. Site of filtration
B. Site of reabsorption
C. Site of secretion
D. Site of excretion

Correct Answer: A

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Question 10
A diagram of a human digestive system is shown below. What is the function of the structure labeled 'Z'?
A. Site of mechanical digestion
Correct B. Site of chemical digestion
C. Site of absorption
D. Site of elimination

Correct Answer: B

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Question 11
The xylem tissue in plants is responsible for transporting water and minerals from the roots to the leaves. Which of the following is a characteristic of xylem tissue?
A. It is composed of dead cells
B. It is composed of living cells
C. It is responsible for transporting sugars from the leaves to the roots
Correct D. It is responsible for transporting water and minerals from the roots to the leaves

Correct Answer: D

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Question 12
The process of mitosis is a type of cell division that results in two daughter cells that are genetically identical to the parent cell. Which of the following stages of mitosis is characterized by the separation of sister chromatids?
A. Prophase
B. Metaphase
Correct C. Anaphase
D. Telophase

Correct Answer: C

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Question 13
The human eye is an example of a complex sense organ that is responsible for detecting light and transmitting visual information to the brain. Which of the following structures is responsible for focu\sing light onto the retina?
A. Cornea
B. Iris
Correct C. Lens
D. Retina

Correct Answer: C

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Question 14
The theory of evolution by natural selection is a fundamental concept in bio\logy that explains how species adapt to their environments over time. Which of the following is a key mechanism of evolution by natural selection?
A. Genetic drift
B. Mutation
C. Gene flow
Correct D. Natural selection

Correct Answer: D

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Question 15
The human body is composed of various systems that work together to maintain homeostasis and overall health. Which of the following systems is responsible for regulating body temperature?
A. Nervous system
B. Circulatory system
C. Respiratory system
Correct D. Integumentary system

Correct Answer: D

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Question 16
In the context of cellular respiration, what is the primary function of the mitochondria?
Correct A. To synthesize ATP from glu\cose
B. To break down glu\cose into carbon dioxide and water
C. To regulate the cell's pH levels
D. To synthesize proteins from amino acids

Correct Answer: A

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Question 17
A population of bacteria is growing exponentially. If the initial population size is 100 and the growth rate is 20% per hour, what will be the population size after 3 hours?
A. 1000
B. 2000
Correct C. 4000
D. 8000

Correct Answer: C

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Question 18
A diagram of the human eye is shown below. Which part of the eye is responsible for adjusting the size of the pupil?
A. A
Correct B. B
C. C
D. D

Correct Answer: B

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Question 19
A plant is placed in a controlled environment with a cons\tant temperature of 25°C and a relative humidity of 60%. If the plant requires 200 mL of water per day to maintain its growth, how much water will it require per day if the temperature increases to 30°C and the relative humidity decreases to 40%?
A. 150 mL
B. 200 mL
Correct C. 250 mL
D. 300 mL

Correct Answer: C

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Question 20
A diagram of a simple harmonic motion is shown below. What is the amplitude of the motion?
A. 2 cm
Correct B. 4 cm
C. 6 cm
D. 8 cm

Correct Answer: B

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Question 21
In the context of cellular respiration, what is the primary function of the electron transport chain?
A. To generate ATP through substrate-level phosphorylation
Correct B. To pump protons across the mitochondrial membrane
C. To produce NADH and FADH2
D. To reduce oxygen to water

Correct Answer: B

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Question 22
A cell is placed in a hypotonic solution. What will happen to the cell?
A. The cell will shrink due to water loss
Correct B. The cell will swell due to water uptake
C. The cell will remain unchanged
D. The cell will lyse

Correct Answer: B

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Question 23
In the process of mitosis, what is the function of the spindle fibers?
Correct A. To separate the chromosomes
B. To attach the chromosomes to the spindle pole
C. To move the chromosomes to the daughter cells
D. To condense the chromosomes

Correct Answer: A

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Question 24
A patient is diagnosed with a bacterial infection. Which of the following antibiotics would be most effective against this type of infection?
A. Penicillin
B. Erythromycin
Correct C. Ciprofloxacin
D. Vancomycin

Correct Answer: C

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Question 25
In the context of nervous system function, what is the primary role of the cerebellum?
A. To integrate sensory information
B. To regulate muscle tone
Correct C. To coordinate voluntary movements
D. To process visual information

Correct Answer: C

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