POST UTME AL-HIKMAH UNIVERSITY 2022 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A diagram of a human digestive system is shown below. Which part of the digestive system is responsible for breaking down proteins?
A. A
B. B
C. C
D. D
Question 2
In a typical human eye, the photoreceptor cells responsible for detecting light are located in the retina. Which of the following types of cells is primarily responsible for this function?
A. Rods
B. Cones
C. Bipolar cells
D. Ganglion cells
Question 3
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 4
A species of plant is found in a region with a high concentration of a particular nutrient in the soil. The plant's roots are adapted to absorb this nutrient, which is then used to facilitate growth. What is the most likely type of nutrient that the plant is adapted to absorb?
A. Nitrogen
B. Phosphorus
C. Potassium
D. Calcium
Question 5
The bacterium Escherichia coli (E. coli) is a common cause of urinary tract infections. Which of the following is a virulence factor that contributes to the pathogenicity of E. coli?
A. Capsule
B. Fimbriae
C. Toxins
D. All of the above
Question 6
In a population of Drosophila melanogaster, the frequency of the recessive allele 'a' is 0.2. What is the expected frequency of the homozygous recessive genotype 'aa'?
A. 0.04
B. 0.08
C. 0.12
D. 0.16
Question 7
In the context of evolutionary theories and adaptations, what is the primary mechanism of natural selection?
A. Genetic drift
B. Gene flow
C. Mutation
D. Survival and reproduction of individuals with favorable traits
Question 8
The diagram below shows the structure of a plant cell. Which of the following is the function of the vacuole?
A. To synthesize proteins
B. To store water and nutrients
C. To produce chlorophyll
D. To regulate cell growth
Question 9
The process of photosynthesis occurs in the chloroplasts of plant cells. Which of the following is the byproduct of photosynthesis?
A. Glu\cose and oxygen
B. Glu\cose and carbon dioxide
C. Oxygen and carbon dioxide
D. Water and glu\cose
Question 10
A population of a particular species is found in a specific type of habitat, which is characterized by a high concentration of a particular predator. The population of the species is declining due to predation. What is the most likely type of predator that is responsible for the decline in population?
A. A large carnivorous mammal
B. A small carnivorous bird
C. A large omnivorous reptile
D. A small omnivorous insect
Question 11
In the reproductive cycle of a female human, the follicular phase is characterized by the growth of the follicle in the ovary. Which of the following hormones is responsible for this growth?
A. Estrogen
B. Progesterone
C. Follicle-stimulating hormone (FSH)
D. Luteinizing hormone (LH)
Question 12
The e\cosystem of a coral reef is characterized by a diverse array of species. Which of the following types of symbiotic relationships is an example of mutualism in this e\cosystem?
A. Commensalism
B. Mutualism
C. Parasitism
D. Predation
Question 13
In the context of respiration and gas exchange, what is the primary function of the alveoli in the lungs?
A. To exchange oxygen and carbon dioxide through diffusion
B. To regulate the pH of the blood
C. To produce surfac\tant to reduce surface tension
D. To filter out pathogens from the air
Question 14
Photosynthesis is the process by which plants convert light energy from the sun into chemical energy in the form of glu\cose. What is the primary reac\tant in the light-dep\endent reactions of photosynthesis?
A. Water (H2O)
B. Carbon dioxide (CO2)
C. Light energy (photons)
D. Oxygen (O2)
Question 15
Which of the following is an example of a convergent evolution in the context of classification of living things?
A. The development of wings in birds and insects
B. The development of limbs in vertebrates
C. The development of photosynthesis in plants and algae
D. The development of hair in mammals and reptiles

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