POST UTME ESUT 2022 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
In a population of 1000 individuals, 200 are heterozygous for a particular gene, 300 are homozygous dominant, and 500 are homozygous recessive. What is the genotype of the population?
A. Homozygous dominant
B. Homozygous recessive
C. Heterozygous
D. Homozygous dominant and recessive
Question 2
A diagram shows a plant cell with a large central vacuole. What is the primary function of the vacuole?
A. To store water and nutrients
B. To synthesize proteins
C. To regulate pH levels
D. To maintain cell shape
Question 3
A 2.5-mL sample of blood is drawn from a patient. The hematocrit is 45%. If the average corpuscular volume (ACV) is 90 fL, what is the total number of red blood cells in the sample?
A. 2.5 x 10^6
B. 5.0 x 10^6
C. 7.5 x 10^6
D. 10.0 x 10^6
Question 4
Which of the following kingdoms of organisms is characterized by the presence of cell walls made of chitin?
A. Animalia
B. Fungi
C. Plantae
D. Protista
Question 5
What is the term for the movement of water from the roots of a plant to the leaves?
A. Transpiration
B. Osmosis
C. Diffusion
D. Active transport
Question 6
A diagram of a plant's xylem is shown below. What is the function of the tracheids in this system?
A. To transport water and minerals from the roots to the leaves
B. To transport sugars and other organic compounds from the leaves to the rest of the plant
C. To regulate the rate of transpiration
D. To maintain the structural integrity of the plant
Question 7
A diagram of a plant's root system is shown. Which part of the root system is responsible for absorbing water and minerals from the soil?
A. A
B. B
C. C
D. D
Question 8
A cell is placed in a hypertonic solution. What will happen to the cell?
A. The cell will swell and eventually burst
B. The cell will shrink and eventually die
C. The cell will remain unchanged
D. The cell will increase in size
Question 9
In a typical human brain, what is the primary function of the corpus callosum?
A. To connect the two hemispheres of the brain
B. To transmit nerve impulses from the spinal cord to the brain
C. To regulate body temperature
D. To facilitate the exchange of oxygen and carbon dioxide between the lungs and the bloodstream
Question 10
A diagram of a human nervous system is shown below. What is the function of the cerebellum in this system?
A. To regulate the rate of breathing
B. To control the movement of skeletal muscles
C. To maintain balance and posture
D. To process sensory information
Question 11
In the context of eco\logical succession, what is the term for the process by which a community of organisms becomes more complex and diverse over time?
A. Primary succession
B. Secondary succession
C. Eco\logical climax
D. Community stabilization
Question 12
The process of hormonal coordination in the body involves the release of hormones from the hypothalamus, which then stimulate the release of other hormones from the pituitary gland. Which of the following hormones is released from the pituitary gland in response to the stimulation from the hypothalamus?
A. Adrenocorticotropic hormone (ACTH)
B. Growth hormone-relea\sing hormone (GHRH)
C. Thyroid-stimulating hormone (TSH)
D. Follicle-stimulating hormone (FSH)
Question 13
What is the process by which plants convert light energy into chemical energy?
A. Respiration
B. Photosynthesis
C. Transpiration
D. Osmosis
Question 14
The process of photosynthesis in plants involves the conversion of light energy into chemical energy in the form of glu\cose. Which of the following is a by-product of this process?
A. Oxygen gas
B. Carbon dioxide gas
C. Water vapor
D. Nitrogen gas
Question 15
A diagram of a food chain is shown. Which part of the food chain is the primary producer?
A. A
B. B
C. C
D. D

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