POST UTME SUMMIT UNIVERSITY 2023 Biology | Objective

Are you preparing for POST UTME SUMMIT UNIVERSITY exams? Reviewing past questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2023 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 hormonal coordination, what is the primary function of the hypothalamus?
A. Regulation of body temperature
B. Control of hunger and thirst
Correct C. Regulation of hormone secretion
D. Maintenance of blood pressure

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 2
A patient with a malfunctioning kidney is experiencing symptoms of water retention. Which of the following is a likely consequence of this condition?
A. Hypertension
B. Hypotension
Correct C. Edema
D. Diabetes

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 3
In the process of photosynthesis, what is the role of the enzyme RuBisCO?
Correct A. Fixation of CO2
B. Reduction of NADP+
C. Oxidation of NADPH
D. Regeneration of RuBP

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 4
A diagram of a cell is shown below. Identify the structure labeled 'A'.
A. Mitochondria
Correct B. Nucleus
C. Endoplasmic reticulum
D. Golgi apparatus

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 5
A population of bacteria is growing exponentially. If the initial population is 100 and the growth rate is 20% per hour, what is the population after 3 hours?
A. 1000
B. 2000
Correct C. 4000
D. 8000

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 6
In a population of 1000 individuals, 70% are homozygous dominant (BB), 20% are heterozygous (Bb), and 10% are homozygous recessive (bb). What is the probability that two individuals chosen at random will have a child with the BB genotype?
Correct A. 0.49
B. 0.7
C. 0.9
D. 0.1

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 7
A diagram of a plant cell is shown below. Identify the part labeled 'A'.
Correct A. Mitochondria
B. Nucleus
C. Cell Wall
D. Chloroplast

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 8
A certain species of bacteria has a generation time of 2 hours. If the initial population is 1000 cells, how many cells will there be after 5 generations?
Correct A. 32000
B. 1000
C. 5000
D. 20000

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 9
A diagram of a simple e\cosystem is shown below. Identify the producer in the e\cosystem.
A. Herbivore
B. Carnivore
C. Decomposer
Correct D. Producer

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 10
A certain species of animal has a mean lifespan of 10 years. If the population is 1000 individuals, what is the probability that an individual chosen at random will live beyond 15 years?
Correct A. 0.5
B. 0.1
C. 0.9
D. 0.7

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 11
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

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 12
The process by which plants convert light energy into chemical energy is known as:
Correct A. Photosynthesis
B. Respiration
C. Transpiration
D. Osmosis

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 13
The hormone that regulates the level of glu\cose in the blood is:
Correct A. Insulin
B. Glucagon
C. Adrenaline
D. Thyroxine

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 14
The process by which the body gets rid of excess water and salts is known as:
Correct A. Osmoregulation
B. Excretion
C. Respiration
D. Transpiration

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 15
The type of muscle that is responsible for involuntary movements is:
A. Skeletal Muscle
Correct B. Smooth Muscle
C. Cardiac Muscle
D. Striated Muscle

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Help others prepare! Share this practice hub:
Chat with Support