POST UTME WELLSPRING UNIVERSITY 2024 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A population of rabbits is growing exponentially. If the initial population size is 100 and the growth rate is 20% per year, what is the population size after 5 years?
A. 1000
B. 2000
C. 5000
D. 10000
Question 2
A population of bacteria is growing exponentially. If the initial population size is 100 and the growth rate is 0.2 per hour, what is the population size after 5 hours?
A. 1000
B. 2000
C. 5000
D. 10000
Question 3
In a plant cell, the process of photosynthesis occurs in the chloroplasts. What is the name of the pigment responsible for absorbing light energy during this process?
A. Chlorophyll a
B. Chlorophyll b
C. Carotenoids
D. Phycobiliproteins
Question 4
The process of cellular respiration in plants involves the breakdown of glu\cose to produce ATP, NADH, and FADH2. Which of the following is the correct sequence of events in the electron transport chain?
A. Complex I → Complex II → Complex III → Complex IV
B. Complex IV → Complex III → Complex II → Complex I
C. Complex II → Complex III → Complex IV → Complex I
D. Complex I → Complex III → Complex II → Complex IV
Question 5
What is the term for the process by which microorganisms cause disease in humans?
A. Infection
B. Toxemia
C. Allergies
D. Autoimmune disorders
Question 6
In the xylem transport system, what is the primary function of the xylem parenchyma cells?
A. To produce xylem sap
B. To store xylem sap
C. To facilitate the transport of xylem sap
D. To regulate the rate of xylem sap transport
Question 7
In the context of eco\logy, what is the primary mechanism by which energy is transferred from one trophic level to the next?
A. Decomposition
B. Herbivory
C. Detritivory
D. Omnivory
Question 8
In the human eye, what is the primary function of the retina?
A. To focus light on the lens
B. To convert light into electrical signals
C. To regulate the amount of light entering the eye
D. To produce tears
Question 9
The diagram below shows the structure of a prokaryotic cell. Which of the following is the correct function of the cell wall?
A. Regulation of cell shape
B. Regulation of cell growth
C. Regulation of cell division
D. Regulation of cell size
Question 10
What is the term for the process by which an organism's genetic information is passed from one generation to the next?
A. Mutation
B. Genetic drift
C. Natural selection
D. Heredity
Question 11
In a tropical rainforest, the primary consumers are primarily herbivores that feed on the primary producers. Which of the following is a characteristic of the primary consumers in this e\cosystem?
A. They have a high metabolic rate to digest cellulose in plant cell walls.
B. They have a low metabolic rate to conserve energy for reproduction.
C. They have a large body size to intimidate predators.
D. They have a specialized digestive system to break down plant cell walls.
Question 12
A plant cell has a high concentration of starch grains in its chloroplasts. Which of the following is a likely consequence of this?
A. The plant cell will undergo rapid cell division.
B. The plant cell will undergo rapid cell growth.
C. The plant cell will produce more ATP through photosynthesis.
D. The plant cell will undergo programmed cell death.
Question 13
A diagram of a plant cell is shown below. Identify the part labeled 'A'.
A. Nucleus
B. Mitochondria
C. Cell Wall
D. Chloroplast
Question 14
A genetic cross between two pea plants results in a 3:1 ratio of tall plants to short plants. What is the genotype of the short plants?
A. Tt
B. tt
C. TT
D. Tt or tt
Question 15
A population of bacteria is growing exponentially. If the initial population size is 100 and the growth rate is 0.2 per hour, what is the population size after 10 hours?
A. 10000
B. 20000
C. 50000
D. 100000

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