POST UTME KSU 2024 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
In a population of 1000 bacteria, 80% are susceptible to a particular antibiotic. If 200 bacteria are exposed to the antibiotic, what is the expected number of resis\tant bacteria?
A. 30
B. 40
C. 50
D. 60
Question 2
A patient is diagnosed with a kidney disorder that affects the kidneys' ability to filter waste products from the blood. Which of the following organs is responsible for the production of erythropoietin, a hormone that stimulates red blood cell production?
A. Liver
B. Kidneys
C. Spleen
D. Bone marrow
Question 3
In the xylem, what is the primary function of the tracheids?
A. Transport of water and minerals from roots to leaves
B. Production of sugars through photosynthesis
C. Storage of nutrients and water
D. Regulation of water potential
Question 4
In a population of 1000 individuals, 70% are heterozygous for the gene controlling the ABO blood type. If 20% of the population are type A, 40% are type B, and 30% are type AB, what is the probability that a randomly selected individual is type O?
A. 0.05
B. 0.10
C. 0.15
D. 0.20
Question 5
A diagram of a human eye is shown below. What is the function of the structure labeled 'Y'?
A. site of vision proces\sing
B. site of light entry
C. site of image formation
D. site of eye movement
Question 6
A diagram of a human brain is shown below. What is the function of the structure labeled 'W'?
A. site of vision proces\sing
B. site of hearing proces\sing
C. site of motor control
D. site of sensory input
Question 7
A 2.5 kg block is attached to a horizontal, massless spring with a force cons\tant of 100 N/m. The block is displaced by 0.25 m from its equilibrium position and released from rest. What is the maximum speed of the block?
A. 0.5 m/s
B. 1.0 m/s
C. 1.5 m/s
D. 2.0 m/s
Question 8
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. 0.36
B. 0.64
C. 0.72
D. 0.88
Question 9
In the context of eco\logy, what is the primary function of a keystone species in a given biome?
A. To regulate the population of other species
B. To maintain the structure of the e\cosystem
C. To facilitate nutrient cycling
D. To provide shelter for other species
Question 10
A diagram of a bacterial cell is shown below. What is the function of the structure labeled 'Z'?
A. site of protein synthesis
B. site of cell division
C. site of cell signaling
D. site of cell growth
Question 11
What is the primary function of the sense organ known as the vestibular apparatus?
A. To detect changes in temperature
B. To detect changes in pressure
C. To detect changes in acceleration and orientation
D. To detect changes in light intensity
Question 12
What is the primary difference between asexual and sexual reproduction?
A. Asexual reproduction involves the fusion of gametes, while sexual reproduction involves the production of offspring without gametes
B. Asexual reproduction involves the production of offspring without gametes, while sexual reproduction involves the fusion of gametes
C. Asexual reproduction is faster than sexual reproduction
D. Asexual reproduction is more common in plants than in animals
Question 13
A plant with the genotype 'Rr' is crossed with a plant with the genotype 'RR'. What is the probability that the offspring will have the genotype 'Rr'?
A. 0.25
B. 0.5
C. 0.75
D. 0.9
Question 14
A 40-year-old man presents with symptoms of respiratory disease. His FEV1/FVC ratio is 0.7. What is the most likely diagnosis?
A. Chronic obstructive pulmonary disease (COPD)
B. Asthma
C. Cystic fibrosis
D. Pulmonary embolism
Question 15
A 1.0 L solution of 0.1 M HCl is mixed with a 1.0 L solution of 0.1 M NaOH. What is the pH of the resulting solution?
A. 0
B. 1
C. 2
D. 3

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