POST UTME CHRISTOPHER UNIVERSITY 2021 Biology | Objective

Are you preparing for POST UTME CHRISTOPHER UNIVERSITY exams? Reviewing past questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2021 Biology (Objective) questions designed to simulate the real exam environment.

Practice these randomly selected questions to test your readiness.

Question 1
In a eukaryotic cell, the process of photosynthesis occurs in the
A. Mitochondria
Correct B. Chloroplast
C. Nucleus
D. Endoplasmic reticulum

Correct Answer: B

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Question 2
The hormone that stimulates the release of insulin from the pancreas is
A. Glucagon
B. Insulin
C. Ghrelin
Correct D. Glucagon-like peptide-1

Correct Answer: D

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Question 3
The type of tissue that is composed of nerve cells is called
A. Epithelial tissue
B. Connective tissue
C. Muscle tissue
Correct D. Nervous tissue

Correct Answer: D

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Question 4
The process by which the body gets rid of waste products and excess subs\tances is called
Correct A. Excretion
B. Respiration
C. Photosynthesis
D. Osmosis

Correct Answer: A

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Question 5
The type of transport system that carries oxygen and nutrients to the cells is called
A. Xylem
B. Phloem
Correct C. Blood
D. Lymph

Correct Answer: C

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Question 6
In the process of osmoregulation, what is the primary mechanism by which the kidneys regulate the concentration of ions in the blood?
Correct A. Active transport of ions
B. Passive diffusion of ions
C. Filtration of ions
D. Excretion of ions

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 gain
C. The cell will remain unchanged
D. The cell will burst due to osmotic pressure

Correct Answer: B

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Question 8
A diagram of the human respiratory system is shown below. What is the function of the alveoli?
Correct A. To exchange oxygen and carbon dioxide
B. To filter the air we breathe
C. To produce mucus
D. To regulate body temperature

Correct Answer: A

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Question 9
A diagram of the cell cycle is shown below. What is the function of the G1 phase?
Correct A. To prepare the cell for DNA replication
B. To replicate the DNA
C. To prepare the cell for cell division
D. To repair damaged DNA

Correct Answer: A

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Question 10
A diagram of the human reproductive system is shown below. What is the function of the vas deferens?
A. To store sperm
Correct B. To transport sperm
C. To produce sperm
D. To regulate hormone production

Correct Answer: B

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Question 11
The diagram below represents a cross-section of the human eye. Which part of the eye is responsible for detecting light?
A. Cornea
B. Iris
Correct C. Retina
D. Lens

Correct Answer: C

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Question 12
The process by which plants release water vapor into the air is known as
A. Respiration
B. Photosynthesis
Correct C. Transpiration
D. Evaporation

Correct Answer: C

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Question 13
The diagram below represents a cell undergoing mitosis. Which stage of mitosis is represented by this diagram?
A. Prophase
Correct B. Metaphase
C. Anaphase
D. Telophase

Correct Answer: B

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Question 14
The hormone that regulates blood sugar levels is
Correct A. Insulin
B. Glucagon
C. Adrenaline
D. Thyroxine

Correct Answer: A

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Question 15
The diagram below represents a cross-section of the human heart. Which part of the heart is responsible for pumping oxygenated blood to the body?
A. Right Ventricle
Correct B. Left Ventricle
C. Right Atrium
D. Left Atrium

Correct Answer: B

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Question 16
In a diploid cell, what is the probability that a randomly selected gamete will have the genotype AA?
Correct A. 1/4
B. 1/2
C. 3/4
D. 1

Correct Answer: A

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Question 17
A plant with the genotype RrSs is crossed with a plant with the genotype RrSs. What is the probability that the offspring will have the genotype RRSS?
A. 1/4
B. 1/2
C. 3/4
Correct D. 1

Correct Answer: D

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Question 18
A neuron releases the neurotransmitter dopamine into the synapse. What is the primary function of dopamine in the nervous system?
A. To transmit signals from the d\endrite to the cell body
B. To transmit signals from the cell body to the axon
C. To transmit signals from the axon to the d\endrite
Correct D. To regulate the strength of synaptic connections

Correct Answer: D

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Question 19
A hormone that stimulates the growth of bone tissue is called a _______________.
Correct A. anabolic hormone
B. catabolic hormone
C. hormone that regulates blood sugar levels
D. hormone that regulates body temperature

Correct Answer: A

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Question 20
In the xylem, water is transported from the roots to the leaves through the process of _______________.
A. osmosis
B. active transport
C. diffusion
Correct D. transpiration pull

Correct Answer: D

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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
B. To produce NADH and FADH2
Correct C. To pump protons across the mitochondrial membrane
D. To reduce oxygen to water

Correct Answer: C

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Question 22
Which of the following is a characteristic of a prokaryotic cell?
A. Presence of a true nucleus
B. Presence of mitochondria
Correct C. Lack of a true nucleus
D. Presence of a cell wall

Correct Answer: C

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Question 23
What is the primary function of the hypothalamus in the regulation of body temperature?
A. To produce heat through shivering
B. To dissipate heat through sweating
Correct C. To regulate body temperature through the hypothalamus
D. To produce cold through vasoconstriction

Correct Answer: C

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Question 24
What is the process by which plants convert light energy into chemical energy?
A. Respiration
Correct B. Photosynthesis
C. Transpiration
D. Osmosis

Correct Answer: B

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Question 25
Which of the following is a type of tissue found in the human body?
Correct A. Epithelial tissue
B. Connective tissue
C. Muscle tissue
D. Nervous tissue

Correct Answer: A

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