POST UTME OSUSTECH 2024 Biology | Objective

Are you preparing for POST UTME OSUSTECH exams? Reviewing past questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2024 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 the human visual system, what is the primary function of the optic nerve?
Correct A. To transmit visual information from the retina to the brain
B. To regulate the amount of light entering the eye
C. To focus light onto the retina
D. To detect changes in color

Correct Answer: A

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Question 2
A cell is placed in a solution with a concentration of 0.1 M glu\cose. If the cell is initially at equilibrium, what will happen to the concentration of glu\cose inside the cell over time?
A. The concentration of glu\cose will increase
Correct B. The concentration of glu\cose will decrease
C. The concentration of glu\cose will remain the same
D. The concentration of glu\cose will fluctuate

Correct Answer: B

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Question 3
A diagram of the human respiratory system is shown below. What is the primary function of the alveoli?
Correct A. To exchange oxygen and carbon dioxide with the environment
B. To filter the air entering the lungs
C. To regulate the temperature of the body
D. To produce mucus to trap dust particles

Correct Answer: A

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Question 4
A genetic cross is performed between two pea plants, one with the genotype TT and the other with the genotype tt. What is the probability that the offspring will have the genotype Tt?
Correct A. 1/2
B. 1/4
C. 3/4
D. 2/3

Correct Answer: A

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Question 5
A diagram of the human excretory system is shown below. What is the primary function of the kidneys?
Correct A. To filter waste products from the blood
B. To regulate the amount of water in the body
C. To produce hormones that control growth and development
D. To maintain the acid-base balance in the body

Correct Answer: A

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Question 6
In the context of cell division, what is the primary function of the centrioles during the prophase stage of mitosis?
Correct A. To form the spindle fibers
B. To replicate the DNA
C. To condense the chromatin
D. To form the nuclear envelope

Correct Answer: A

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Question 7
A patient presents with symptoms of a bacterial infection. The patient's blood culture shows the presence of a gram-positive, catalase-negative bacterium. Which of the following antibiotics would be most effective against this bacterium?
A. Penicillin
B. Erythromycin
C. Ciprofloxacin
Correct D. Vancomycin

Correct Answer: D

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Question 8
A plant grows in a controlled environment with a cons\tant temperature of 25°C and a photoperiod of 12 hours light and 12 hours dark. What is the expected effect on the plant's growth and development?
Correct A. Increased growth rate and leaf expansion
B. Decreased growth rate and leaf expansion
C. No effect on growth rate and leaf expansion
D. Increased root growth and decreased leaf expansion

Correct Answer: A

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Question 9
A diagram of a cell is shown below. Identify the structure labeled 'X'.
A. Lysosome
B. Ribosome
Correct C. Golgi apparatus
D. Peroxisome

Correct Answer: C

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Question 10
A diagram of a circuit is shown below. Identify the component labeled 'Y'.
A. Amplifier
B. Filter
Correct C. Transformer
D. Generator

Correct Answer: C

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Question 11
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. Endosymbiosis

Correct Answer: A

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Question 12
The process by which plants convert light energy from the sun into chemical energy in the form of glu\cose is called
Correct A. Photosynthesis
B. Respiration
C. Transpiration
D. Osmosis

Correct Answer: A

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Question 13
The type of transport in plants that involves the movement of water and minerals from the roots to the leaves through the xylem is called
A. Transpiration
Correct B. Translocation
C. Osmosis
D. Diffusion

Correct Answer: B

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Question 14
The process by which the body gets rid of waste products and excess subs\tances is called
Correct A. Excretion
B. Osmoregulation
C. Digestion
D. Absorption

Correct Answer: A

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Question 15
The type of classification that groups living organisms based on their physical characteristics and morpho\logy is called
A. Phy\logenetic Classification
Correct B. Morpho\logical Classification
C. Bio\logical Classification
D. Chemical Classification

Correct Answer: B

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Question 16
The process of mitosis in eukaryotic cells involves the replication of DNA and the subsequent division of the cell into two daughter cells. Which of the following stages of mitosis is characterized by the condensation of chromatin into visible chromosomes?
Correct A. Prophase
B. Metaphase
C. Anaphase
D. Telophase

Correct Answer: A

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Question 17
The nervous system is responsible for transmitting signals between different parts of the body. Which of the following types of neurons is responsible for transmitting signals from sensory receptors to the central nervous system?
A. Motor neuron
Correct B. Sensory neuron
C. Interneuron
D. Association neuron

Correct Answer: B

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Question 18
The process of photosynthesis in plants involves the conversion of light energy into chemical energy. Which of the following reac\tants is responsible for the reduction of carbon dioxide to form glu\cose?
Correct A. Water
B. Carbon dioxide
C. Light energy
D. Oxygen

Correct Answer: A

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Question 19
The process of evolution by natural selection involves the adaptation of species to their environment. Which of the following mechanisms is responsible for the increase in the frequency of a beneficial trait in a population?
A. Genetic drift
B. Gene flow
C. Mutation
Correct D. Natural selection

Correct Answer: D

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Question 20
The process of mitosis in eukaryotic cells involves the replication of DNA and the subsequent division of the cell into two daughter cells. Which of the following stages of mitosis is characterized by the separation of sister chromatids?
A. Prophase
B. Metaphase
Correct C. Anaphase
D. Telophase

Correct Answer: C

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Question 21
The nervous system is responsible for transmitting signals between different parts of the body. Which of the following types of neurons is responsible for transmitting signals from the central nervous system to muscles and glands?
Correct A. Motor neuron
B. Sensory neuron
C. Interneuron
D. Association neuron

Correct Answer: A

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Question 22
The process of photosynthesis in plants involves the conversion of light energy into chemical energy. Which of the following products is formed during the light-dep\endent reactions of photosynthesis?
A. ATP
Correct B. NADPH
C. Oxygen
D. Glu\cose

Correct Answer: B

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Question 23
The process of evolution by natural selection involves the adaptation of species to their environment. Which of the following mechanisms is responsible for the decrease in the frequency of a deleterious trait in a population?
A. Genetic drift
B. Gene flow
C. Mutation
Correct D. Natural selection

Correct Answer: D

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Question 24
The process of mitosis in eukaryotic cells involves the replication of DNA and the subsequent division of the cell into two daughter cells. Which of the following stages of mitosis is characterized by the formation of a spindle apparatus?
Correct A. Prophase
B. Metaphase
C. Anaphase
D. Telophase

Correct Answer: A

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Question 25
The nervous system is responsible for transmitting signals between different parts of the body. Which of the following types of neurons is responsible for transmitting signals from sensory receptors to the central nervous system?
A. Motor neuron
B. Sensory neuron
C. Interneuron
D. Association neuron

Correct Answer: VIEW ANSWER

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