POST UTME AFE BABALOLA UNIVERSITY 2022 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A researcher is studying the effect of light intensity on the growth of a plant. Which of the following light intensities is most likely to result in the highest rate of photosynthesis?
A. Low light intensity
B. Moderate light intensity
C. High light intensity
D. Very high light intensity
Question 2
A study on the evolution of antibiotic resis\tance in bacteria revealed that the rate of resis\tance development is influenced by the presence of certain environmental factors. Which of the following environmental factors is most likely to contribute to the development of antibiotic resis\tance?
A. Temperature
B. pH
C. Nutrient availability
D. Presence of other microorganisms
Question 3
In a tropical rainforest e\cosystem, the primary consumers are primarily herbivores that feed on the abundant plant life. Which of the following is a characteristic of these primary consumers?
A. They have a high metabolic rate
B. They have a low reproductive rate
C. They have a large body size
D. They have a specialized digestive system
Question 4
In the human eye, the retina contains specialized photoreceptor cells called rods and cones. Which of the following is a characteristic of the rods?
A. They are sensitive to color
B. They are sensitive to low light levels
C. They are responsible for peripheral vision
D. They are responsible for central vision
Question 5
The diagram below shows a cross-section of a human brain. What is the function of the part labeled 'C'?
A. To control movement
B. To regulate body temperature
C. To process sensory information
D. To produce hormones
Question 6
A 2-year-old child is diagnosed with acute lymphoblastic leukemia (ALL). The child's bone marrow biopsy reveals a high percentage of blast cells. Which of the following is the most likely cause of this condition?
A. Genetic mutation
B. Viral infection
C. Environmental exposure
D. Immunodeficiency
Question 7
A plant cell is placed in a solution with a high concentration of sugar. What will happen to the cell?
A. The cell will shrink due to water loss
B. The cell will swell due to water uptake
C. The cell will remain unchanged
D. The cell will burst due to osmotic pressure
Question 8
A person has a high concentration of urea in their blood. What is the likely cause?
A. Kidney failure
B. Liver failure
C. Diabetes
D. Heart failure
Question 9
In the context of classification of living things, what is the primary function of the kingdom level?
A. To group organisms based on their cell structure
B. To group organisms based on their genetic makeup
C. To group organisms based on their body structure
D. To group organisms based on their mode of nutrition
Question 10
In the process of photosynthesis, what type of energy is absorbed by chlorophyll?
A. Thermal energy
B. Kinetic energy
C. Radiant energy
D. Potential energy
Question 11
In a population of 1000 individuals, 20% are heterozygous for the sickle cell trait. If 10% of the population is homozygous dominant and 70% is homozygous recessive, what is the frequency of the recessive allele?
A. 0.15
B. 0.20
C. 0.25
D. 0.30
Question 12
In the process of digestion, what is the primary function of the enzyme amylase?
A. To break down proteins into amino acids
B. To break down carbohydrates into simple sugars
C. To break down fats into fatty acids
D. To break down nucleic acids into nucleotides
Question 13
What is the primary function of the sense organ known as the vestibular apparatus?
A. Detection of sound
B. Maintenance of balance
C. Regulation of body temperature
D. Production of tears
Question 14
The diagram below shows a cross-section of a plant root. What is the function of the part labeled 'B'?
A. To absorb water
B. To absorb nutrients
C. To store starch
D. To produce hormones
Question 15
A geneticist is studying the inheri\tance of a particular trait in a population of mice. Which of the following genetic patterns is most likely to result in the expression of the dominant allele?
A. Autosomal dominant
B. Autosomal recessive
C. X-linked dominant
D. X-linked recessive

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