POST UTME AL-HIKMAH UNIVERSITY 2022 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
The human digestive system is responsible for breaking down food into smaller molecules that can be absorbed and utilized by the body. What is the primary function of the pancreas?
A. To secrete digestive enzymes to break down proteins.
B. To secrete hormones to regulate blood sugar levels.
C. To absorb nutrients from the small intestine.
D. To store bile from the liver.
Question 2
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 3
In the context of microorganisms and diseases, what is the primary mechanism of antibiotic resis\tance?
A. Mutation of the target gene
B. Horizontal gene transfer
C. Vertical gene transfer
D. Increased expression of efflux pumps
Question 4
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 5
The human eye has a complex structure that allows it to detect light and transmit visual information to the brain. What is the primary function of the retina?
A. To focus light onto the lens.
B. To detect light and transmit visual information to the brain.
C. To regulate the amount of light entering the eye.
D. To produce tears to lubricate the eye.
Question 6
The process of excretion in humans involves the removal of waste products from the body. Which of the following is a major function of the kidneys in this process?
A. Regulation of blood pressure
B. Maintenance of electrolyte balance
C. Removal of waste products
D. Production of hormones
Question 7
In a eukaryotic cell, the process of mitosis is initiated by the breakdown of the nuclear envelope, which is triggered by the activation of the protein kinase Cdk1. What is the primary function of Cdk1 in this process?
A. To phosphorylate and activate the nuclear lamina
B. To bind to and inactivate the nuclear envelope
C. To recruit and activate the spindle assembly checkpoint
D. To regulate the expression of genes involved in cell cycle progression
Question 8
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 9
A plant cell is placed in a solution with a high concentration of sucrose. What is the likely effect on the cell's turgor pressure?
A. The turgor pressure will decrease
B. The turgor pressure will increase
C. The turgor pressure will remain unchanged
D. The cell will undergo plasmolysis
Question 10
In the context of hormonal coordination, what is the primary function of the hypothalamus in regulating the pituitary gland?
A. To produce hormones that stimulate the pituitary gland
B. To inhibit the production of hormones by the pituitary gland
C. To regulate the release of hormones from the pituitary gland
D. To produce hormones that suppress the pituitary gland
Question 11
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 12
In a eukaryotic cell, the process of mitosis is initiated by the breakdown of the nuclear envelope, resulting in the release of the chromosomes into the cytoplasm. Which of the following stages of mitosis is characterized by the condensation of chromosomes and the formation of the spindle apparatus?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Question 13
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 dominant allele 'A'?
A. 0.2
B. 0.4
C. 0.6
D. 0.8
Question 14
A plant grows in a region with a high concentration of a particular gas in the atmosphere. The plant's leaves are adapted to absorb this gas, which is then used to facilitate photosynthesis. What is the most likely type of gas that the plant is adapted to absorb?
A. Oxygen
B. Carbon dioxide
C. Nitrogen
D. Water vapor
Question 15
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)

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