POST UTME WELLSPRING UNIVERSITY 2019 Biology | Objective

Are you preparing for POST UTME WELLSPRING UNIVERSITY 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 closed e\cosystem, what is the primary mechanism by which energy is transferred from one trophic level to the next?
Correct A. Photosynthesis
B. Respiration
C. Decomposition
D. Trophic cascades

Correct Answer: A

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Question 2
The diagram below shows the structure of a plant cell. What is the function of the organelle labeled 'A'?
A. Photosynthesis
B. Respiration
C. Storage of nutrients
Correct D. Regulation of cell growth

Correct Answer: D

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Question 3
The graph below shows the relationship between the concentration of a substrate and the rate of enzyme activity. What is the name of the enzyme?
A. Amylase
B. Lactase
Correct C. Tryp\sin
D. Pep\sin

Correct Answer: C

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Question 4
The diagram below shows the structure of a human eye. What is the function of the part labeled 'B'?
A. Detection of light
Correct B. Focus of light
C. Regulation of pupil size
D. Production of tears

Correct Answer: B

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Question 5
The graph below shows the relationship between the concentration of a substrate and the rate of enzyme activity. What is the name of the enzyme?
A. Amylase
B. Lactase
Correct C. Tryp\sin
D. Pep\sin

Correct Answer: C

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Question 6
In asexual reproduction, what is the primary mechanism by which genetic variation occurs?
A. Mutation
Correct B. Genetic recombination
C. Gene duplication
D. Gene deletion

Correct Answer: B

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Question 7
The diagram below shows a cross-section of a plant root. Identify the structure labeled 'A'.
A. Epidermis
B. Cortex
Correct C. Endodermis
D. Xylem

Correct Answer: C

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Question 8
A population of bacteria is growing exponentially. If the initial population is 100 and the growth rate is 20% per hour, what will be the population after 3 hours?
A. 1600
B. 1800
C. 2000
Correct D. 2200

Correct Answer: D

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Question 9
The diagram below shows a simple harmonic motion. Identify the type of motion.
Correct A. Simple harmonic motion
B. Damped harmonic motion
C. Forced harmonic motion
D. Oscillatory motion

Correct Answer: A

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Question 10
A cell is placed in a solution with a pH of 4. What will be the concentration of hydrogen ions in the solution?
Correct A. 1 x 10^-4 M
B. 1 x 10^-5 M
C. 1 x 10^-6 M
D. 1 x 10^-7 M

Correct Answer: A

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Question 11
In the xylem transport system, what is the primary function of the xylem parenchyma cells?
Correct A. To store water and minerals
B. To produce xylem sap
C. To transport xylem sap
D. To regulate water potential

Correct Answer: A

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Question 12
A species of bird has a beak that is 10 cm long. If the beak is 2/3 of the bird's total head length, what is the total head length of the bird?
A. 5 cm
B. 6 cm
Correct C. 7.5 cm
D. 10 cm

Correct Answer: C

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Question 13
In the classification of living things, what is the primary characteristic that distinguishes between prokaryotes and eukaryotes?
A. Cell wall presence
B. Cell membrane presence
Correct C. Presence of a true nucleus
D. Presence of mitochondria

Correct Answer: C

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Question 14
A population of rabbits 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 15
A diagram of a plant's root system is shown below. Which part of the root system is responsible for absorbing water and minerals from the soil?
A. A
Correct B. B
C. C
D. D

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 diagram below shows a cross-section of a plant root. Which of the following structures is responsible for the absorption of water and minerals from the soil?
A. A
Correct B. B
C. C
D. Both B and C

Correct Answer: B

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Question 18
The human body is home to a vast array of microorganisms, including bacteria, viruses, and fungi. Which of the following types of microorganisms is responsible for the production of antibiotics?
Correct A. Bacteria
B. Viruses
C. Fungi
D. None of the above

Correct Answer: A

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Question 19
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 production of oxygen during photosynthesis?
A. Carbon dioxide
Correct B. Water
C. Glu\cose
D. Oxygen

Correct Answer: B

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Question 20
The diagram below shows a cross-section of a human eye. Which of the following structures is responsible for the accommodation of light onto the retina?
A. A
Correct B. B
C. C
D. Both B and C

Correct Answer: B

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Question 21
In a tropical rainforest e\cosystem, the primary consumers are primarily composed of what type of organisms?
Correct A. Herbivorous insects
B. Carnivorous mammals
C. Decomposers
D. Fungi

Correct Answer: A

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Question 22
A patient is diagnosed with a bacterial infection caused by a gram-positive bacterium. Which of the following antibiotics would be most effective in treating this infection?
A. Penicillin
B. Ciprofloxacin
Correct C. Vancomycin
D. Metronidazole

Correct Answer: C

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Question 23
The xylem in a plant consists of what type of cells?
A. Parenchyma cells
B. Collenchyma cells
C. Sclerenchyma cells
Correct D. Tracheary elements

Correct Answer: D

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Question 24
The process of mitosis in a cell results in what type of daughter cells?
Correct A. Identical daughter cells
B. Differentiated daughter cells
C. Identical and differentiated daughter cells
D. No daughter cells

Correct Answer: A

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Question 25
The sense organ responsible for detecting changes in light intensity is the?
Correct A. Eye
B. Ear
C. Nose
D. Tongue

Correct Answer: A

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