POST UTME COAL CITY UNIVERSITY 2018 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
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 2
The type of eco\logical community that is characterized by a small number of species and a low level of biodiversity is called
A. E\cosystem
B. Biome
C. Community
D. Monodiversity
Question 3
A diagram of the human circulatory system is shown below. Which of the following structures is responsible for the regulation of blood pressure?
A. Aorta
B. Pulmonary artery
C. Renal arteries
D. Baroreceptors
Question 4
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. 0.5
B. 0.75
C. 0.25
D. 0.33
Question 5
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. 0.5
B. 0.75
C. 0.25
D. 0.33
Question 6
The diagram below shows a cross-section of the lung. Which of the following structures is responsible for exchanging oxygen and carbon dioxide between the air and the blood?
A. The alveoli
B. The capillaries
C. The bronchioles
D. The trachea
Question 7
A population of bacteria is growing exponentially. If the initial population is 100 and the population doubles every 2 hours, what is the population after 6 hours?
A. 1000
B. 2000
C. 4000
D. 8000
Question 8
The type of eco\logical community that is characterized by a large number of species and a high level of biodiversity is called
A. E\cosystem
B. Biome
C. Community
D. Eudiversity
Question 9
A rec\tangular prism has a length of 5 cm, a width of 3 cm, and a height of 2 cm. What is the volume of the prism?
A. 30 cm^3
B. 50 cm^3
C. 60 cm^3
D. 70 cm^3
Question 10
The Hardy-Weinberg principle states that allele and genotype frequencies in a population will remain cons\tant from generation to generation in the absence of other evolutionary influences. Which of the following is a necessary condition for the Hardy-Weinberg principle to hold?
A. Random mating
B. Large population size
C. No mutation
D. No gene flow
Question 11
A plant has a genotype of 'Rr' for the flower color gene. If the plant is crossed with a plant having the genotype 'RR', what is the probability that the offspring will have the genotype 'RR'?
A. 0.25
B. 0.50
C. 0.75
D. 1.0
Question 12
The process by which a cell divides into two daughter cells is called
A. Mitosis
B. Meiosis
C. Binary Fission
D. Endospore Formation
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 diagram below shows a simple circuit. What is the total resis\tance of the circuit?
A. R1 + R2
B. R1 - R2
C. R1 × R2
D. R1 ÷ R2
Question 15
In the process of natural selection, which of the following is an example of a selective pressure?
A. Genetic drift
B. Mutation
C. Genetic variation
D. Predation

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