POST UTME BSU 2024 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A diagram of the human eye is shown below. What is the function of the part labeled 'A'?
A. To focus light on the retina
B. To detect light intensity
C. To regulate pupil size
D. To produce tears
Question 2
In the context of osmoregulation, what is the primary function of the hypothalamus in regulating water balance in the body?
A. To increase water reabsorption in the kidneys
B. To decrease water reabsorption in the kidneys
C. To stimulate the release of ADH
D. To inhibit the release of ADH
Question 3
What is the primary function of the Golgi apparatus in eukaryotic cells?
A. Protein synthesis
B. Lipid synthesis
C. Cell signaling
D. Protein modification and sorting
Question 4
A microorganism is identified as a gram-positive bacterium. What is the primary characteristic of this bacterium?
A. Thick peptidoglycan layer
B. Thin peptidoglycan layer
C. Presence of a capsule
D. Presence of flagella
Question 5
A diagram of the xylem and phloem tissues in a plant stem is shown below. What is the primary function of the xylem tissue?
A. Transport of water and minerals
B. Transport of sugars and amino acids
C. Support and storage
D. Protection from pathogens
Question 6
In a population of 1000 individuals, 70% are heterozygous for the gene controlling the production of the enzyme lactase. If 20% of the population is homozygous recessive for this gene, what is the frequency of the recessive allele?
A. 0.2
B. 0.3
C. 0.4
D. 0.5
Question 7
A population of 1000 individuals has a mean height of 170 cm. If the s\tandard deviation is 10 cm, what is the probability that a randomly selected individual will have a height greater than 180 cm?
A. 0.1
B. 0.2
C. 0.3
D. 0.4
Question 8
A patient is diagnosed with a respiratory disease characterized by inflammation of the airways. Which of the following is a common treatment for this disease?
A. Inhalers
B. Oxygen therapy
C. Antibiotics
D. Surgery
Question 9
A researcher is studying the effect of antibiotics on bacterial growth. Which of the following is the most likely outcome of the experiment?
A. Increased bacterial growth
B. Decreased bacterial growth
C. No effect on bacterial growth
D. Bacterial resis\tance to antibiotics
Question 10
A population of 1000 individuals has a mean height of 170 cm. If the s\tandard deviation is 10 cm, what is the probability that a randomly selected individual will have a height greater than 180 cm?
A. 0.1
B. 0.2
C. 0.3
D. 0.4
Question 11
In a population of Drosophila melanogaster, the frequency of the recessive allele 'a' is 0.2. If the population is in Hardy-Weinberg equilibrium, what is the frequency of the homozygous dominant genotype 'AA'?
A. 0.16
B. 0.36
C. 0.64
D. 0.84
Question 12
A plant has a root system with a total surface area of 100 cm^2. If the root hairs have a length of 1 mm, what is the total length of the root hairs?
A. 100 cm
B. 1000 cm
C. 10,000 cm
D. 100,000 cm
Question 13
A cell is in the G1 phase of the cell cycle. What is the primary function of the cell during this phase?
A. To synthesize DNA
B. To replicate DNA
C. To prepare for mitosis
D. To undergo meiosis
Question 14
A diagram of the human circulatory system is shown below. What is the primary function of the heart?
A. Pumping blood to the lungs
B. Pumping blood to the body
C. Regulation of blood pressure
D. Absorption of nutrients
Question 15
A plant has a root system with a total surface area of 100 cm^2. If the root hairs have a length of 1 mm, what is the total length of the root hairs?
A. 100 cm
B. 1000 cm
C. 10,000 cm
D. 100,000 cm

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