POST UTME CALEB UNIVERSITY 2017 Biology | Objective

Are you preparing for POST UTME CALEB 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 context of reproductive bio\logy, what is the primary function of the zona pellucida in the oocyte?
A. To provide structural support to the oocyte
B. To facilitate fertilization by sperm
C. To regulate the release of hormones during ovulation
Correct D. To prevent polyspermy

Correct Answer: D

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Question 2
A diagram of a plant's xylem is shown below. What is the primary function of the xylem in this plant?
Correct A. To transport water and minerals from the roots to the leaves
B. To transport sugars and other organic compounds from the leaves to the roots
C. To provide structural support to the plant
D. To regulate the plant's water potential

Correct Answer: A

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Question 3
In the context of evolutionary bio\logy, what is the primary mechanism by which natural selection acts on a population?
A. Genetic drift
B. Gene flow
C. Mutation
Correct D. Differential reproduction

Correct Answer: D

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Question 4
A diagram of the human eye is shown below. What is the primary function of the retina in this organ?
A. To focus light onto the lens
Correct B. To detect light and transmit signals to the brain
C. To regulate the eye's water potential
D. To provide structural support to the eye

Correct Answer: B

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Question 5
In the context of reproductive bio\logy, what is the primary function of the corpus luteum in the female reproductive cycle?
Correct A. To produce estrogen and progesterone
B. To regulate the release of hormones during ovulation
C. To prevent polyspermy
D. To provide structural support to the oocyte

Correct Answer: A

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Question 6
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. Stimulation of the pituitary gland
D. Regulation of the menstrual cycle

Correct Answer: C

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Question 7
A population of rabbits is introduced to a new island with an abundance of food and no natural predators. According to the theory of natural selection, what is the expected outcome for this population over time?
A. The population will remain cons\tant
B. The population will decrease due to overgrazing
Correct C. The population will increase exponentially
D. The population will adapt to the new environment

Correct Answer: C

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Question 8
A cell is placed in a solution with a high concentration of glu\cose. What is the expected outcome for the cell's membrane potential?
A. The membrane potential will become more negative
Correct B. The membrane potential will become more positive
C. The membrane potential will remain unchanged
D. The membrane potential will oscillate

Correct Answer: B

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Question 9
A genetic mutation occurs in a population of bacteria, resulting in a change to the amino acid sequence of a protein. According to the theory of evolution, what is the expected outcome for this population over time?
Correct A. The population will adapt to the new environment
B. The population will become extinct
C. The population will remain unchanged
D. The population will evolve into a new species

Correct Answer: A

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Question 10
A diagram of a plant cell is shown below. What is the function of the cell wall?
Correct A. To provide structural support
B. To regulate the movement of materials
C. To produce energy for the cell
D. To synthesize proteins

Correct Answer: A

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Question 11
In the context of the nervous system, what is the primary function of the axon hillock?
A. To transmit signals to the d\endrites
Correct B. To generate action potentials
C. To synthesize neurotransmitters
D. To regulate ion channels

Correct Answer: B

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Question 12
A plant cell is placed in a solution with a high concentration of sucrose. What will happen to the cell's turgor pressure?
A. It will decrease
Correct B. It will increase
C. It will remain the same
D. It will become negative

Correct Answer: B

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Question 13
A diagram of the human eye is shown below. What is the function of the part labeled 'A'?
Correct A. To focus light on the retina
B. To detect movement
C. To regulate pupil size
D. To produce tears

Correct Answer: A

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Question 14
A solution of glu\cose is placed in a dialysis bag and submerged in a solution of urea. What will happen to the concentration of glu\cose in the dialysis bag?
A. It will increase
Correct B. It will decrease
C. It will remain the same
D. It will become negative

Correct Answer: B

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Question 15
A diagram of the xylem tissue is shown below. What is the function of the part labeled 'B'?
Correct A. To transport water and minerals
B. To provide structural support
C. To store food
D. To regulate gas exchange

Correct Answer: A

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Question 16
The process of photosynthesis in plants involves the conversion of light energy into chemical energy in the form of glu\cose. Which of the following statements about the light-dep\endent reactions is correct?
A. Light energy is absorbed by chlorophyll and converted into ATP and NADPH
B. Water is split into oxygen and hydrogen ions, which are used to generate ATP and NADPH
C. The light-dep\endent reactions occur in the mitochondria
Correct D. The light-dep\endent reactions occur in the chloroplast

Correct Answer: D

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Question 17
The diagram below shows the structure of a nerve cell. Which of the following is a function of the d\endrites?
A. To transmit signals to other nerve cells
Correct B. To receive signals from other nerve cells
C. To produce neurotransmitters
D. To synthesize proteins

Correct Answer: B

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Question 18
The classification of living things is based on several characteristics, including cell structure, body organization, and metabolic processes. Which of the following kingdoms is characterized by the presence of a true nucleus and complex body organization?
A. Monera
B. Protista
C. Fungi
Correct D. Animalia

Correct Answer: D

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Question 19
The process of digestion in the human body involves the breakdown of large molecules of food into smaller molecules that can be absorbed and utilized by the body. Which of the following enzymes is responsible for breaking down proteins into amino acids?
A. Amylase
B. Lipase
Correct C. Tryp\sin
D. Lactase

Correct Answer: C

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Question 20
The nervous system is responsible for transmitting and proces\sing information throughout the body. Which of the following is a function of the cerebellum?
A. To regulate body temperature
Correct B. To coordinate muscle movements
C. To process sensory information
D. To produce hormones

Correct Answer: B

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Question 21
The process of asexual reproduction in which a new individual is formed from a part of the parent's body, such as budding or fragmentation, is an example of which type of reproduction?
A. Binary Fission
B. Mitosis
C. Budding
Correct D. Fragmentation

Correct Answer: D

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Question 22
In the context of growth and regulation, what is the term for the process by which cells become specialized to perform specific functions?
Correct A. Differentiation
B. Mitosis
C. Meiosis
D. Hormone Regulation

Correct Answer: A

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Question 23
Which of the following types of tissue is composed of epithelial cells that line the respiratory tract?
A. Connective Tissue
B. Muscle Tissue
C. Nervous Tissue
Correct D. Epithelial Tissue

Correct Answer: D

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Question 24
The xylem tissue in plants is responsible for transporting which of the following subs\tances?
Correct A. Water and Minerals
B. Sugars and Starches
C. Proteins and Hormones
D. Waste Products

Correct Answer: A

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Question 25
The process by which plants convert light energy from the sun into chemical energy in the form of glu\cose is known as?
Correct A. Photosynthesis
B. Respiration
C. Transpiration
D. Translocation

Correct Answer: A

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