POST UTME LAUTECH 2020 Biology | Objective

Are you preparing for POST UTME LAUTECH exams? Reviewing past questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2020 Biology (Objective) questions designed to simulate the real exam environment.

Practice these randomly selected questions to test your readiness.

Question 1
In a typical vertebrate, the epithelial lining of the small intestine is composed of which of the following types of cells?
A. Microfold cells
B. Goblet cells
C. Paneth cells
Correct D. Enterocytes

Correct Answer: D

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Question 2
The process by which plants convert light energy into chemical energy is known as?
A. Respiration
Correct B. Photosynthesis
C. Transpiration
D. Osmosis

Correct Answer: B

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Question 3
The diagram below shows a cross-section of a plant root. Which of the following is the function of the xylem tissue?
Correct A. Transport of water and minerals
B. Transport of sugars and amino acids
C. Support and storage of food
D. Protection from pathogens

Correct Answer: A

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Question 4
The diagram below shows a graph of the growth of a population over time. Which of the following is the most likely cause of the population decline?
A. Predation
Correct B. Disease
C. Environmental factors
D. Competition for resources

Correct Answer: B

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Question 5
The process by which an organism's genetic information is passed from one generation to the next is known as?
A. Mutation
B. Genetic drift
C. Natural selection
Correct D. Heritability

Correct Answer: D

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Question 6
In a tropical rainforest e\cosystem, the primary producers are typically
A. Herbivores
B. Decomposers
Correct C. Producers
D. Omnivores

Correct Answer: C

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Question 7
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. Gene Expression
Correct D. Heritability

Correct Answer: D

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Question 8
The nervous system of an organism is responsible for
A. Regulating body temperature
B. Controlling movement
Correct C. Proces\sing sensory information
D. Producing hormones

Correct Answer: C

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Question 9
The process by which an organism's genetic information is altered by external factors is called
Correct A. Mutation
B. Genetic Drift
C. Gene Expression
D. Epigenetics

Correct Answer: A

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Question 10
The hormone insulin is produced by the
A. Pituitary gland
Correct B. Pancreas
C. Adrenal gland
D. Thyroid gland

Correct Answer: B

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Question 11
In a population of Drosophila melanogaster, the frequency of the recessive allele 'a' is 0.2. If the population is in Hardy-Weinberg equilibrium, what is the frequency of the homozygous dominant genotype 'AA'?
Correct A. 0.36
B. 0.64
C. 0.16
D. 0.04

Correct Answer: A

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Question 12
The diagram below shows a cross between two Drosophila melanogaster individuals. If the genotype of the female parent is 'Aa' and the genotype of the male parent is 'AA', what is the probability that the offspring will be homozygous recessive?
A. 0.5
Correct B. 0.25
C. 0.75
D. 0.33

Correct Answer: B

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Question 13
A solution containing 0.1 M NaCl is diluted to 0.01 M. What is the new volume of the solution?
A. 10 mL
Correct B. 100 mL
C. 1000 mL
D. 10000 mL

Correct Answer: B

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Question 14
The diagram below shows a titration setup. If 25 mL of 0.1 M HCl is added to 25 mL of 0.1 M NaOH, what is the pH of the resulting solution?
A. 7
Correct B. 9
C. 11
D. 13

Correct Answer: B

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Question 15
A plant grows from a seed in a controlled environment. If the initial height of the plant is 5 cm and it grows at a rate of 2 cm/day, what is the height of the plant after 5 days?
A. 15 cm
B. 17 cm
Correct C. 19 cm
D. 21 cm

Correct Answer: C

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Question 16
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. Telophase
D. Prophase

Correct Answer: A

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Question 17
The diagram below shows a cross-section of a plant root. Which of the following is the primary function of the
A. Xylem
B. Phloem
C. Cortex
Correct D. Endodermis

Correct Answer: D

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Question 18
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 19
The diagram below shows a simple food chain. Which of the following is an example of a
A. Decomposer
Correct B. Producer
C. Consumer
D. Scavenger

Correct Answer: B

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Question 20
The theory of evolution by natural selection was first proposed by
Correct A. Charles Darwin
B. Gregor M\endel
C. Jean-Baptiste Lamarck
D. Alfred Russel Wallace

Correct Answer: A

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Question 21
In a photosynthetic pathway, which enzyme catalyzes the conversion of ribulose-1,5-bisphosphate to 3-phosphoglycerate?
Correct A. Ribulose-1,5-bisphosphate carboxylase/oxygenase
B. Phosphoglycerate kinase
C. Triosephosphate isomerase
D. Enolase

Correct Answer: A

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Question 22
A population of Drosophila melanogaster is being studied for its response to a mutation in the white gene. Which of the following would be the most likely effect of this mutation?
A. Increased pigmentation of the eyes
Correct B. Decreased pigmentation of the eyes
C. No effect on pigmentation of the eyes
D. Increased body size

Correct Answer: B

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Question 23
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 24
A patient is diagnosed with a bacterial infection. Which of the following antibiotics would be most effective against this type of infection?
A. Penicillin
B. Erythromycin
C. Ciprofloxacin
Correct D. Vancomycin

Correct Answer: D

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Question 25
A diagram of the human circulatory system is shown below. What is the function of the part labeled 'B'?
A. To pump blood throughout the body
Correct B. To carry oxygenated blood from the lungs to the heart
C. To carry deoxygenated blood from the heart to the lungs
D. To regulate blood pressure

Correct Answer: B

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