POST UTME BELLS UNIVERSITY 2017 Biology | Objective

Are you preparing for POST UTME BELLS 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 process of osmoregulation, what is the primary mechanism by which the kidney regulates the concentration of ions in the blood?
A. Hormonal regulation
B. Renal tubular reabsorption
C. Glomerular filtration
Correct D. Aldosterone-mediated sodium reabsorption

Correct Answer: D

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Question 2
What is the primary function of the hypothalamus in the regulation of body temperature?
A. Regulation of hunger and thirst
Correct B. Regulation of body temperature
C. Regulation of blood pressure
D. Regulation of sleep and wakefulness

Correct Answer: B

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Question 3
What is the term for the process by which a microorganism becomes resis\tant to an antibiotic?
A. Bacterial conjugation
B. Transformation
C. Transduction
Correct D. Antibiotic resis\tance

Correct Answer: D

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Question 4
What is the primary function of the Golgi apparatus in a cell?
A. Protein synthesis
B. Cell signaling
C. Lipid synthesis
Correct D. Modification and packaging of proteins and lipids

Correct Answer: D

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Question 5
What is the term for the process by which a cell divides into two daughter cells?
Correct A. Mitosis
B. Meiosis
C. Binary fission
D. Endoreduplication

Correct Answer: A

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Question 6
In the context of photosynthesis, what is the role of the enzyme RuBisCO in the Calvin cycle?
Correct A. It catalyzes the conversion of CO2 to glu\cose
B. It is involved in the light-dep\endent reactions
C. It is a key enzyme in the breakdown of starch to glu\cose
D. It is responsible for the fixation of nitrogen

Correct Answer: A

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Question 7
A study on the effect of pH on enzyme activity found that the enzyme's activity increased as the pH increased. Which of the following best describes the type of enzyme?
A. Acidic enzyme
Correct B. Basic enzyme
C. Neutral enzyme
D. Optimal pH enzyme

Correct Answer: B

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Question 8
A genetic cross between two organisms resulted in a 9:3:3:1 ratio of phenotypes. What is the genotype of the parents?
A. Both parents are homozygous dominant
B. One parent is homozygous dominant and the other is homozygous recessive
Correct C. Both parents are heterozygous
D. One parent is homozygous dominant and the other is heterozygous

Correct Answer: C

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Question 9
A plant hormone that promotes cell elongation is?
Correct A. Auxin
B. Gibberellin
C. Cytokinin
D. Ethylene

Correct Answer: A

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Question 10
A diagram of the human nervous system shows the following components: a brain, a spinal cord, and a peripheral nervous system. Which of the following is NOT a function of the peripheral nervous system?
A. Sensory input
B. Motor output
Correct C. Regulation of body temperature
D. Regulation of blood pressure

Correct Answer: C

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