POST UTME ELIZADE UNIVERSITY 2017 Biology | Objective

Are you preparing for POST UTME ELIZADE UNIVERSITY exams? Reviewing past questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2017 Biology (Objective) questions designed to simulate the real exam environment.

Practice these randomly selected questions to test your readiness.

Question 1
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 inner membrane
C. To reduce NAD+ to NADH
D. To produce water as a byproduct of oxidative phosphorylation

Correct Answer: B

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Question 2
A researcher is studying the effects of light intensity on plant growth. Which of the following types of tissues would be most affected by changes in light intensity?
Correct A. Parenchyma
B. Collenchyma
C. Sclerenchyma
D. Xylem

Correct Answer: A

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Question 3
A diagram of the human eye is shown below. What is the primary function of the lens?
Correct A. To focus light on the retina
B. To detect changes in light intensity
C. To regulate the amount of light entering the eye
D. To produce tears

Correct Answer: A

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Question 4
A geneticist is studying the inheri\tance of a particular trait in a population. Which of the following types of genetic variation would be most likely to result in a change in the frequency of the trait?
A. Mutation
B. Gene flow
C. Genetic drift
Correct D. Natural selection

Correct Answer: D

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Question 5
A researcher is studying the effects of a new medication on the respiratory system. Which of the following types of cells would be most affected by the medication?
A. Alveolar macrophages
Correct B. Bronchial epithelial cells
C. Pulmonary capillary \endothelial cells
D. Smooth muscle cells

Correct Answer: B

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Question 6
In the process 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 inner membrane
C. To produce NADH and FADH2
D. To reduce oxygen to water

Correct Answer: B

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Question 7
A diagram of the human brain is shown below. Which part of the brain is responsible for regulating body temperature?
Correct A. Hypothalamus
B. Cerebellum
C. Pons
D. Medulla oblongata

Correct Answer: A

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Question 8
A species of plant is classified as belonging to the kingdom Plantae. Which of the following characteristics is most likely to be true about this species?
Correct A. It has a cell wall made of cellulose
B. It has flagella for movement
C. It has a nucleus with a true mitotic spindle
D. It has a body cavity with a fluid called lymph

Correct Answer: A

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Question 9
A diagram of the human eye is shown below. Which part of the eye is responsible for detecting light?
A. Cornea
B. Iris
C. Lens
Correct D. Retina

Correct Answer: D

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Question 10
A species of animal is classified as belonging to the phylum Chordata. Which of the following characteristics is most likely to be true about this species?
Correct A. It has a notochord at some stage in its development
B. It has a body cavity with a fluid called lymph
C. It has a true coelom
D. It has a pair of gill slits

Correct Answer: A

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Question 11
In a eukaryotic cell, the process of mitosis is initiated by the breakdown of the nuclear envelope. What is the name of the stage in which the nuclear envelope breaks down?
Correct A. Prophase
B. Metaphase
C. Anaphase
D. Telophase

Correct Answer: A

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Question 12
A researcher is studying the effect of pH on the growth of E. coli bacteria. Which of the following is a likely consequence of a decrease in pH?
A. Increased growth rate
Correct B. Decreased growth rate
C. No effect on growth rate
D. Increased mortality rate

Correct Answer: B

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Question 13
A geneticist is studying the inheri\tance of a trait in a family. The trait is determined by a \single gene with two alleles: A and a. Which of the following genotypes would result in a heterozygous offspring?
A. AA
Correct B. Aa
C. aa
D. AA x aa

Correct Answer: B

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Question 14
A bio\logist is studying the structure of a plant cell. Which of the following organelles is responsible for photosynthesis?
A. Mitochondria
Correct B. Chloroplast
C. Vacuole
D. Nucleus

Correct Answer: B

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Question 15
A researcher is studying the effect of temperature on the growth of a microorganism. Which of the following is a likely consequence of an increase in temperature?
A. Decreased growth rate
Correct B. Increased growth rate
C. No effect on growth rate
D. Increased mortality rate

Correct Answer: B

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Question 16
The sense organ responsible for detecting vibrations in the air is the
A. Cochlea
B. Vestibule
Correct C. Lateral Line
D. Eustachian Tube

Correct Answer: C

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Question 17
The process by which an organism becomes better suited to its environment is called
Correct A. Natural Selection
B. Genetic Drift
C. Gene Flow
D. Mutation

Correct Answer: A

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Question 18
The discovery of the structure of DNA by James Watson and Francis Crick is an example of
A. The Scientific Method
B. The Process of Elimination
Correct C. The Double Helix Model
D. The Theory of Evolution

Correct Answer: C

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Question 19
The process by which plants convert light energy into chemical energy is called
Correct A. Photosynthesis
B. Respiration
C. Transpiration
D. Evaporation

Correct Answer: A

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Question 20
The sense organ responsible for detecting changes in pressure is the
Correct A. Vestibule
B. Cochlea
C. Lateral Line
D. Eustachian Tube

Correct Answer: A

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Question 21
In the context of respiratory physio\logy, what is the primary function of the parasympathetic nervous system in the regulation of breathing?
A. To increase the rate and depth of breathing
Correct B. To decrease the rate and depth of breathing
C. To regulate the volume of the lungs
D. To control the rate of gas exchange

Correct Answer: B

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Question 22
A patient with a history of tuberculosis is diagnosed with a new case of tuberculosis. Which of the following is the most likely cause of the new case?
A. Reactivation of latent tuberculosis
Correct B. Exogenous reinfection
C. Genetic predisposition
D. Environmental factors

Correct Answer: B

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Question 23
A diagram of the human eye is shown below. Which of the following structures is responsible for the accommodation of light?
A. Cornea
B. Iris
Correct C. Lens
D. Retina

Correct Answer: C

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Question 24
A diagram of the human respiratory system is shown below. Which of the following structures is responsible for the exchange of oxygen and carbon dioxide?
A. Trachea
B. Bronchi
Correct C. Alveoli
D. Diaphragm

Correct Answer: C

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Question 25
A diagram of the human nervous system is shown below. Which of the following structures is responsible for the transmission of nerve impulses?
A. D\endrite
B. Axon
Correct C. Synapse
D. Myelin sheath

Correct Answer: C

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