POST UTME COAL CITY UNIVERSITY 2018 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
The process of photosynthesis involves the conversion of light energy into chemical energy. Which of the following reac\tants is responsible for the production of oxygen?
A. Carbon dioxide
B. Water
C. Chlorophyll
D. Light energy
Question 2
The process of cellular respiration involves the breakdown of glu\cose to produce ATP. Which of the following stages of cellular respiration is responsible for the production of ATP?
A. Glycolysis
B. Citric acid cycle
C. Electron transport chain
D. Fermentation
Question 3
The process of photosynthesis involves the conversion of light energy into chemical energy. Which of the following is an example of a light-dep\endent reaction?
A. Light-indep\endent reaction
B. Calvin cycle
C. Light-dep\endent reaction
D. Electron transport chain
Question 4
In the process of osmoregulation, the kidneys play a crucial role in maintaining the balance of electrolytes and water in the body. Which of the following best describes the mechanism by which the kidneys regulate electrolyte balance?
A. The kidneys reabsorb or secrete electrolytes in response to changes in the body's internal environment.
B. The kidneys regulate electrolyte balance by controlling the amount of water reabsorbed in the collecting duct.
C. The kidneys maintain electrolyte balance by adjusting the rate of filtration in the glomeruli.
D. The kidneys regulate electrolyte balance by controlling the amount of electrolytes excreted in the urine.
Question 5
What is the term for the process by which a microorganism becomes resis\tant to an antibiotic?
A. Mutation
B. Gene expression
C. Horizontal gene transfer
D. Antibiotic resis\tance
Question 6
The process by which a cell divides into two daughter cells is called
A. Mitosis
B. Meiosis
C. Binary Fission
D. Endospore Formation
Question 7
The process by which plants convert light energy into chemical energy is called
A. Photosynthesis
B. Respiration
C. Transpiration
D. Translocation
Question 8
The type of cell division that results in the production of gametes is called
A. Mitosis
B. Meiosis
C. Binary Fission
D. Endospore Formation
Question 9
The process by which an organism becomes extinct is called
A. Extinction
B. Evolution
C. Adaptation
D. Speciation
Question 10
A solution of 0.1 M glu\cose is placed in a dialysis bag and submerged in a 0.5 M glu\cose solution. What is the concentration of glu\cose in the dialysis bag after 2 hours?
A. 0.05 M
B. 0.1 M
C. 0.15 M
D. 0.2 M
Question 11
The process of cellular respiration involves the breakdown of glu\cose to produce ATP. Which of the following stages of cellular respiration is responsible for the production of NADH?
A. Glycolysis
B. Pyruvate oxidation
C. Citric acid cycle
D. Electron transport chain
Question 12
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. 0.64
B. 0.36
C. 0.16
D. 0.04
Question 13
The hormone that stimulates the release of insulin from the pancreas is
A. Glucagon
B. Insulin
C. Ghrelin
D. Somatostatin
Question 14
The hormone that stimulates the release of growth hormone from the pituitary gland is
A. Growth Hormone-Relea\sing Hormone
B. Somatostatin
C. Thyroid-Stimulating Hormone
D. Adrenocorticotropic Hormone
Question 15
A firm produces two goods, X and Y. The production of good X requires 2 hours of labor and 1 hour of machine time, while the production of good Y requires 1 hour of labor and 2 hours of machine time. If the firm has 8 hours of labor and 10 hours of machine time available, how many units of good X and good Y should the firm produce to maximize profit?
A. 10 units of X, 5 units of Y
B. 5 units of X, 10 units of Y
C. 15 units of X, 3 units of Y
D. 20 units of X, 2 units of Y

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