POST UTME UI 2019 Biology | Objective

Are you preparing for POST UTME UI exams? Reviewing past questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2019 Biology (Objective) questions designed to simulate the real exam environment.

Practice these randomly selected questions to test your readiness.

Question 1
In a photosynthetic pathway, which of the following is the primary electron acceptor in the light-dep\endent reactions?
A. P680
Correct B. P700
C. Pheophytin
D. Plastocyanin

Correct Answer: B

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Question 2
A cell undergoing mitosis has a nucleus with 4 chromosomes. What is the total number of chromosomes in the daughter cells after mitosis?
Correct A. 8
B. 16
C. 32
D. 64

Correct Answer: A

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Question 3
A population of rabbits in a forest is growing at a rate of 20% per year. If the initial population is 100 rabbits, what will be the population after 5 years?
A. 1610
B. 1620
Correct C. 1630
D. 1640

Correct Answer: C

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Question 4
A diagram of a plant cell is shown below. What is the function of the part labeled 'A'?
Correct A. Photosynthesis
B. Respiration
C. Transpiration
D. Osmosis

Correct Answer: A

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Question 5
A diagram of a human kidney is shown below. What is the function of the part labeled 'B'?
Correct A. Filtering waste from the blood
B. Regulating blood pressure
C. Producing hormones
D. Absorbing nutrients

Correct Answer: A

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Question 6
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

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Question 7
The process by which plants release water vapor into the atmosphere is known as
Correct A. Transpiration
B. Respiration
C. Photosynthesis
D. Evaporation

Correct Answer: A

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Question 8
The type of tissue that is found in the walls of blood vessels and is responsible for regulating blood pressure is known as
A. Cardiac Muscle
B. Skeletal Muscle
Correct C. Smooth Muscle
D. Connective Tissue

Correct Answer: C

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Question 9
The process by which an organism's genetic information is passed from one generation to the next is known as
A. Heritability
Correct B. Inheri\tance
C. Mutation
D. Genetic Drift

Correct Answer: B

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Question 10
The type of e\cosystem that is characterized by a large number of species and a complex food web is known as
A. Desert E\cosystem
Correct B. Tropical Rainforest E\cosystem
C. Grassland E\cosystem
D. Arctic Tundra E\cosystem

Correct Answer: B

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Question 11
In the context of hormonal coordination, what is the primary function of the hypothalamus in regulating the pituitary gland?
A. To produce hormones that stimulate the pituitary gland
B. To produce hormones that inhibit the pituitary gland
Correct C. To regulate the release of hormones from the pituitary gland
D. To produce hormones that stimulate the thyroid gland

Correct Answer: C

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Question 12
A patient is diagnosed with a bacterial infection caused by Staphylococcus aureus. Which of the following antibiotics is most effective against this bacterium?
A. Penicillin
B. Erythromycin
Correct C. Vancomycin
D. Ciprofloxacin

Correct Answer: C

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Question 13
Asexual reproduction in plants can occur through the process of budding. What is the primary advantage of budding in plants?
Correct A. It allows for rapid reproduction and colonization of new areas
B. It increases genetic diversity in the population
C. It is a \cost-effective method of reproduction
D. It is a method of reproduction that is indep\endent of environmental factors

Correct Answer: A

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Question 14
The classification of living organisms into kingdoms is based on the following characteristics. Which of the following is a characteristic of the kingdom Animalia?
A. Multicellularity
B. Cell wall present
Correct C. Heterotrophic
D. Asexual reproduction

Correct Answer: C

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Question 15
The cell membrane is a selectively permeable membrane that regulates the movement of subs\tances in and out of the cell. What is the primary function of the cell membrane in regulating the movement of subs\tances?
Correct A. To regulate the movement of ions and water
B. To regulate the movement of nutrients and waste products
C. To regulate the movement of proteins and carbohydrates
D. To regulate the movement of gases and hormones

Correct Answer: A

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Question 16
The process of excretion in humans involves the removal of waste products from the body. Which of the following organs plays a crucial role in the excretory process?
A. Liver
Correct B. Kidneys
C. Lungs
D. Skin

Correct Answer: B

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Question 17
The nervous system is responsible for transmitting signals throughout the body. Which of the following types of neurons is responsible for transmitting signals from sensory receptors to the central nervous system?
A. Motor Neurons
Correct B. Sensory Neurons
C. Interneurons
D. Glial Cells

Correct Answer: B

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Question 18
The process of osmoregulation in humans involves the regulation of the concentration of solutes in the body. Which of the following mechanisms helps to regulate the concentration of solutes in the body?
A. Reabsorption of water in the kidneys
B. Excretion of excess ions in the urine
C. Regulation of hormone levels
Correct D. All of the above

Correct Answer: D

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Question 19
The process of genetic drift in populations involves the random change in the frequency of a gene or trait. Which of the following factors can contribute to genetic drift?
A. Mutation
B. Genetic recombination
C. Genetic drift
Correct D. All of the above

Correct Answer: D

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Question 20
The process of natural selection in populations involves the survival and reproduction of individuals with favorable traits. Which of the following is a key component of natural selection?
A. Variation in traits
B. Heritability of traits
C. Differential reproduction
Correct D. All of the above

Correct Answer: D

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Question 21
In a eukaryotic cell, the process of cell division that results in the production of four daughter cells, each with the same number and kind of chromosomes as the parent cell, is called
Correct A. Mitosis
B. Meiosis
C. Binary Fission
D. Endoreduplication

Correct Answer: A

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Question 22
The sense organ responsible for detecting changes in sound waves is the
Correct A. Ear
B. Eye
C. Nose
D. Mouth

Correct Answer: A

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Question 23
The process by which microorganisms such as bacteria and viruses cause disease in humans is called
Correct A. Infection
B. Toxicity
C. Allergy
D. Immunity

Correct Answer: A

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Question 24
The type of tissue that is composed of nerve cells and their supporting cells is called
A. Epithelial Tissue
B. Connective Tissue
C. Muscle Tissue
Correct D. Nervous Tissue

Correct Answer: D

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Question 25
The system of the body that is responsible for the removal of waste products and excess subs\tances is called
A. Circulatory System
B. Respiratory System
C. Digestive System
Correct D. Excretory System

Correct Answer: D

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