POST UTME RHEMA UNIVERSITY 2025 Biology | Objective

Are you preparing for POST UTME RHEMA UNIVERSITY exams? Reviewing past questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2025 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 mitosis is initiated by the breakdown of the nuclear envelope, which is triggered by the activation of the protein kinase Cdk1. What is the primary function of Cdk1 in this process?
A. To phosphorylate and activate the nuclear lamina
B. To degrade the nuclear envelope
Correct C. To regulate the cell cycle
D. To synthesize new DNA

Correct Answer: C

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Question 2
A patient is diagnosed with a rare genetic disorder characterized by the absence of the enzyme glu\cose-6-phosphatase. Which of the following symptoms is most likely to be associated with this disorder?
Correct A. Hypoglycemia
B. Hyperglycemia
C. Glycogen storage disease
D. Lactic acidosis

Correct Answer: A

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Question 3
In a typical human eye, the cornea is responsible for re\fracting light, while the lens is responsible for focu\sing light. What is the primary function of the iris?
Correct A. To regulate the amount of light entering the eye
B. To focus light on the retina
C. To re\fract light through the cornea
D. To detect changes in light intensity

Correct Answer: A

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Question 4
A researcher is studying the effects of a new antibiotic on a bacterial culture. Which of the following is a likely outcome of the antibiotic treatment?
A. The bacteria will become resis\tant to the antibiotic
Correct B. The bacteria will die due to the disruption of cell wall synthesis
C. The bacteria will undergo genetic mutation
D. The bacteria will form a biofilm

Correct Answer: B

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Question 5
A patient is diagnosed with a rare genetic disorder characterized by the absence of the enzyme phenylalanine hydroxylase. Which of the following symptoms is most likely to be associated with this disorder?
A. Mental retardation
B. Seizures
C. Skin discoloration
Correct D. Growth retardation

Correct Answer: D

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Question 6
In a tropical rainforest biome, the primary producers are plants that undergo photosynthesis. Which of the following is a characteristic of photosynthesis?
A. The process releases oxygen as a byproduct.
Correct B. The process requires sunlight, water, and carbon dioxide.
C. The process produces glu\cose and oxygen.
D. The process occurs only in aquatic environments.

Correct Answer: B

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Question 7
In a desert biome, the primary consumers are animals that feed on the primary producers. Which of the following is an example of a primary consumer in a desert biome?
A. A camel
B. A cactus
Correct C. A lizard
D. A snake

Correct Answer: C

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Question 8
In a coral reef biome, the symbiotic relationship between coral and algae is an example of mutualism. Which of the following is a characteristic of mutualism?
Correct A. Both organisms benefit and neither is harmed.
B. One organism benefits and the other is harmed.
C. Both organisms are harmed.
D. One organism benefits and the other is unaffected.

Correct Answer: A

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Question 9
In a forest biome, the transport system of a tree consists of xylem and phloem tissues. Which of the following is a function of the xylem tissue?
Correct A. Transporting water and minerals from the roots to the leaves.
B. Transporting sugars and other organic compounds from the leaves to the roots.
C. Providing structural support to the tree.
D. Regulating the tree's water balance.

Correct Answer: A

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Question 10
In a human body, the sense organ responsible for detecting light and color is the eye. Which of the following is a part of the eye that detects light?
A. Cornea
B. Iris
Correct C. Retina
D. Lens

Correct Answer: C

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Question 11
In a eukaryotic cell, the process of mitosis is initiated by the breakdown of the nuclear envelope, which is triggered by the activation of the
Correct A. Spindle fibers
B. Centrioles
C. Nuclear membrane
D. Chromatin condensation

Correct Answer: A

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Question 12
The process of photosynthesis in plants involves the conversion of light energy into chemical energy, which is stored in the form of
A. ATP
B. NADPH
Correct C. Glu\cose
D. Water

Correct Answer: C

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Question 13
The nervous system of an organism is responsible for transmitting signals between different parts of the body, u\sing
A. Hormones
Correct B. Neurotransmitters
C. Synapses
D. Axons

Correct Answer: B

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Question 14
The process of cellular respiration involves the breakdown of glu\cose to produce energy, which is stored in the form of
Correct A. ATP
B. NADH
C. FADH2
D. Pyruvate

Correct Answer: A

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Question 15
The classification of living organisms into different kingdoms is based on their
A. Cell structure
B. Metabolism
C. Reproduction
Correct D. Evolutionary history

Correct Answer: D

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Question 16
In a tropical rainforest e\cosystem, what is the primary mechanism by which nutrients are cycled?
Correct A. Decomposition
B. Photosynthesis
C. Respiration
D. Transpiration

Correct Answer: A

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Question 17
A plant hormone that promotes cell elongation and cell division is:
Correct A. Auxin
B. Gibberellin
C. Cytokinin
D. Ethylene

Correct Answer: A

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Question 18
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 19
A type of symbiotic relationship in which one organism benefits and the other is harmed is:
A. Mutualism
B. Commensalism
Correct C. Parasitism
D. Amensalism

Correct Answer: C

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Question 20
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 21
In the context of osmoregulation, what is the primary function of the kidneys in maintaining electrolyte balance?
A. To regulate the amount of water in the body
B. To remove excess ions from the body
Correct C. To maintain the balance of electrolytes in the body
D. To regulate blood pressure

Correct Answer: C

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Question 22
In a tropical rainforest e\cosystem, what is the primary role of the decomposers in the nutrient cycle?
Correct A. To break down dead organic matter into simpler compounds
B. To synthesize complex organic compounds from simpler ones
C. To absorb nutrients from the soil
D. To release nutrients back into the soil

Correct Answer: A

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Question 23
In the context of evolutionary theory, what is the primary mechanism by which natural selection acts on a population?
A. Genetic drift
B. Gene flow
C. Mutation
Correct D. Selection pressure

Correct Answer: D

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Question 24
In the context of classification of living things, what is the primary characteristic that distinguishes between prokaryotic and eukaryotic cells?
Correct A. Presence of a true nucleus
B. Presence of mitochondria
C. Presence of a cell wall
D. Presence of a plasma membrane

Correct Answer: A

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Question 25
In the context of sense organs, what is the primary function of the olfactory epithelium in the nasal cavity?
A. To detect changes in air pressure
B. To detect changes in temperature
Correct C. To detect odors and pheromones
D. To detect sounds

Correct Answer: C

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