POST UTME COVENANT UNIVERSITY 2017 Biology | Objective

Are you preparing for POST UTME COVENANT 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 a photosynthetic pathway, what is the primary function of the enzyme RuBisCO?
Correct A. Fixation of CO2
B. Reduction of NADP+
C. Regeneration of RuBP
D. Oxidation of NADPH

Correct Answer: A

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Question 2
A cell is placed in a hypertonic solution. What will happen to the cell?
A. The cell will swell and eventually burst
Correct B. The cell will shrink and lose water
C. The cell will remain unchanged
D. The cell will gain water and increase in size

Correct Answer: B

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Question 3
A genetic cross is performed between two organisms with different alleles of a gene. What is the probability of the offspring inheriting the dominant allele?
A. 25%
Correct B. 50%
C. 75%
D. 100%

Correct Answer: B

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Question 4
A diagram of a plant cell is shown below. Identify the part labeled A.
Correct A. Cell wall
B. Nucleus
C. Mitochondria
D. Chloroplast

Correct Answer: A

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Question 5
A population of bacteria is growing exponentially. If the initial population is 100 and the population doubles every 2 hours, what will be the population after 6 hours?
A. 1000
B. 2000
C. 4000
Correct D. 8000

Correct Answer: D

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Question 6
In the xylem, water and minerals are transported from the roots to the leaves through a process called
Correct A. Transpiration Pull
B. Root Pressure
C. Transpiration Push
D. Capillary Action

Correct Answer: A

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Question 7
The process by which an organism's genetic information is passed from one generation to the next is called
A. Mutation
B. Genetic Drift
C. Natural Selection
Correct D. Heritability

Correct Answer: D

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Question 8
The excretory system in humans is responsible for removing waste products from the body through the process of
A. Osmosis
B. Diffusion
C. Active Transport
Correct D. Filtration

Correct Answer: D

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Question 9
The microorganism responsible for cau\sing tuberculosis is
A. Escherichia coli
B. Staphylococcus aureus
Correct C. Mycobacterium tuberculosis
D. Salmonella typhi

Correct Answer: C

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Question 10
The process by which an organism grows and develops from a \single cell to a complex multicellular organism is called
A. Mitosis
B. Meiosis
C. Differentiation
Correct D. Development

Correct Answer: D

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Question 11
The process of cell division that results in the production of four daughter cells, each with the same number and kind of chromosomes as the parent cell, is called
Correct A. Mitosis
B. Meiosis
C. Binary Fission
D. Endosymbiosis

Correct Answer: A

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Question 12
The hormone that stimulates the release of insulin from the pancreas is
Correct A. Glucagon
B. Insulin
C. Ghrelin
D. Somatostatin

Correct Answer: A

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Question 13
The type of tissue that is found in the walls of blood vessels and is responsible for the regulation of blood pressure is
A. Cardiac Muscle
B. Skeletal Muscle
Correct C. Smooth Muscle
D. Connective Tissue

Correct Answer: C

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Question 14
The process by which plants convert light energy into chemical energy is called
Correct A. Photosynthesis
B. Respiration
C. Transpiration
D. Translocation

Correct Answer: A

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Question 15
The type of cell division that results in the production of four non-identical daughter cells, each with half the number of chromosomes as the parent cell, is called
Correct A. Meiosis
B. Mitosis
C. Binary Fission
D. Endosymbiosis

Correct Answer: A

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Question 16
In the context of reproductive bio\logy, what is the primary function of the corpus luteum in the ovary?
Correct A. To produce progesterone for implantation of the blastocyst
B. To produce estrogen for follicular development
C. To produce testosterone for spermatogenesis
D. To produce inhibin for follicular atresia

Correct Answer: A

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Question 17
A 25-year-old woman presents with primary amenorrhea. Her karyotype is 46,XX. What is the most likely cause of her condition?
A. Androgen insensitivity syndrome
B. Turner syndrome
C. Congenital adrenal hyperplasia
Correct D. Mayer-Roki\tansky-Küster-Hauser syndrome

Correct Answer: D

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Question 18
A 30-year-old man presents with a 2-year history of infertility. His semen analysis shows azoospermia. What is the most likely cause of his condition?
A. Klinefelter syndrome
B. Varicocele
C. Cryptorchidism
Correct D. Obstructive azoospermia

Correct Answer: D

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Question 19
A 20-year-old woman presents with a 3-month history of irregular menstrual cycles. Her karyotype is 46,XX. What is the most likely cause of her condition?
Correct A. Polycystic ovary syndrome
B. Premature ovarian failure
C. Hyperprolactinemia
D. Thyroid dysfunction

Correct Answer: A

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Question 20
A 35-year-old man presents with a 5-year history of infertility. His semen analysis shows oligospermia. What is the most likely cause of his condition?
Correct A. Varicocele
B. Cryptorchidism
C. Obstructive azoospermia
D. Klinefelter syndrome

Correct Answer: A

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Question 21
In the process 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 transport carbon dioxide into the plant

Correct Answer: A

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Question 22
What is the primary function of the Golgi apparatus in a plant cell?
A. To synthesize proteins
B. To synthesize lipids
Correct C. To modify and package proteins and lipids for transport
D. To synthesize carbohydrates

Correct Answer: C

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Question 23
In a human body, what is the primary function of the circulatory system?
Correct A. To transport oxygen and nutrients to cells
B. To transport waste products away from cells
C. To regulate body temperature
D. To maintain fluid balance

Correct Answer: A

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Question 24
What is the primary function of the mitochondria in a plant cell?
Correct A. To synthesize ATP
B. To synthesize glu\cose
C. To transport water and minerals into the plant
D. To transport carbon dioxide into the plant

Correct Answer: A

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Question 25
In a human body, what is the primary function of the nervous system?
A. To transport oxygen and nutrients to cells
B. To transport waste products away from cells
C. To regulate body temperature
Correct D. To transmit and process information

Correct Answer: D

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