POST UTME ABU 2025 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A diagram of a titration setup is shown below. What is the purpose of the burette?
A. to measure the volume of the acid
B. to measure the volume of the base
C. to mix the acid and base
D. to heat the mixture
Question 2
The hormone responsible for regulating blood sugar levels is:
A. Insulin
B. Glucagon
C. Adrenaline
D. Thyroxine
Question 3
The process by which plants convert light energy into chemical energy is known as:
A. Photosynthesis
B. Respiration
C. Transpiration
D. Translocation
Question 4
A patient is diagnosed with a viral infection. Which of the following antiviral medications would be most effective against this type of infection?
A. Ribavirin
B. Oseltamivir
C. Acyclovir
D. Amantadine
Question 5
In the context of blood transport systems, what is the primary function of the erythrocytes?
A. To regulate blood pH
B. To transport oxygen to tissues
C. To remove waste products from the blood
D. To maintain blood pressure
Question 6
The human body is composed of four main types of tissues: epithelial, connective, muscle, and nervous. Which of the following is a characteristic of epithelial tissue?
A. It is found in the dermis layer of the skin
B. It forms the lining of organs and glands
C. It is composed of muscle cells
D. It is found in the bone marrow
Question 7
A patient is diagnosed with a viral infection. The patient's viral load is 10^6 copies/mL. Which of the following statements about the patient's immune response is true?
A. The patient's immune system is functioning normally.
B. The patient's immune system is suppressed.
C. The patient's immune system is overactive.
D. The patient's immune system is in a state of shock.
Question 8
The diagram below represents a cross between two pea plants. What is the probability that the offspring will have the green pod phenotype?
A. 0.5
B. 0.75
C. 0.25
D. 1
Question 9
A diagram of the human nervous system is shown below. Identify the structure labeled 'C' in the diagram.
A. Brain
B. Spinal cord
C. Cerebellum
D. Medulla oblongata
Question 10
In a population of Drosophila melanogaster, the frequency of the recessive allele 'a' is 0.2. What is the probability that two individuals chosen at random will both be homozygous recessive?
A. 0.04
B. 0.16
C. 0.36
D. 0.64
Question 11
A researcher is studying the effect of pH on the growth of E. coli. The researcher measures the growth of E. coli at different pH levels and plots the data on a graph. Which of the following statements about the graph is true?
A. The graph shows a positive correlation between pH and growth rate.
B. The graph shows a negative correlation between pH and growth rate.
C. The graph shows no correlation between pH and growth rate.
D. The graph shows a direct relationship between pH and growth rate.
Question 12
The process of natural selection acts on variation in a population, leading to the evolution of adaptations that enhance survival and reproductive success. Which of the following is an example of an adaptation that has evolved in response to predation pressure?
A. Camouflage in the peppered moth
B. The development of venom in snakes
C. The formation of antlers in deer
D. The evolution of bright plumage in birds
Question 13
In the context of excretion, what is the term for the process by which the kidneys filter waste products from the blood and excrete them in the urine?
A. Glomerular filtration
B. Tubular reabsorption
C. Tubular secretion
D. Ureteral peristalsis
Question 14
A plant has a genotype of BBRR. What is the probability that a seed produced by this plant will be homozygous dominant for the B gene?
A. 0.25
B. 0.5
C. 0.75
D. 1.0
Question 15
Photosynthesis is the process by which plants, algae, and some bacteria convert light energy from the sun into chemical energy in the form of glu\cose. Which of the following is a byproduct of photosynthesis?
A. Oxygen gas
B. Carbon dioxide gas
C. Water vapor
D. Nitrogen gas

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