POST UTME VERITAS UNIVERSITY 2020 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A plant has a photosynthetic rate of 20 mg CO2/hour. If the light intensity is increased by 50%, what is the new photosynthetic rate?
A. 15 mg CO2/hour
B. 20 mg CO2/hour
C. 25 mg CO2/hour
D. 30 mg CO2/hour
Question 2
A diagram of the human eye is shown below. Identify the part labeled 'A'.
A. Cornea
B. Iris
C. Retina
D. Lens
Question 3
In the context of osmoregulation, what is the primary function of the kidneys in a desert-dwelling organism?
A. To conserve water by reabsorbing water from the filtrate
B. To excrete excess salt by producing a highly concentrated urine
C. To regulate electrolyte balance by adjusting the amount of ions in the urine
D. To produce a highly concentrated urine by reabsorbing water from the filtrate
Question 4
In the context of cell division, what is the primary function of the spindle fibers?
A. To separate the chromosomes during mitosis
B. To attach the chromosomes to the microtubules
C. To move the chromosomes to the poles of the cell
D. To regulate the cell cycle
Question 5
A patient is diagnosed with a bacterial infection caused by Staphylococcus aureus. Which of the following antibiotics is most effective against this bacterium?
A. Penicillin
B. Erythromycin
C. Vancomycin
D. Ciprofloxacin
Question 6
A species of bird has a beak shape that is well-suited for cracking open nuts. However, a sudden change in climate leads to a scarcity of nuts, and the population \begins to decline. What is the likely outcome for the population?
A. The population will adapt to the new climate and survive
B. The population will go extinct
C. The population will remain stable
D. The population will increase
Question 7
What is the primary function of the pancreas in the regulation of blood glu\cose levels?
A. To produce insulin to lower blood glu\cose levels
B. To produce glucagon to raise blood glu\cose levels
C. To produce both insulin and glucagon to regulate blood glu\cose levels
D. To produce neither insulin nor glucagon
Question 8
A population of rabbits is growing at a rate of 20% per year. If the initial population size is 100, what will be the population size after 5 years?
A. 1610
B. 1000
C. 400
D. 1600
Question 9
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. 0.8
B. 0.6
C. 0.4
D. 0.2
Question 10
In the context of evolutionary theory, what is the primary mechanism driving the adaptation of a population to a changing environment?
A. Natural selection
B. Genetic drift
C. Gene flow
D. Mutation
Question 11
What is the primary function of the Golgi apparatus in a cell?
A. To synthesize proteins from amino acids
B. To modify and package proteins for transport
C. To synthesize lipids from fatty acids
D. To synthesize carbohydrates from glu\cose
Question 12
A solution of glu\cose (C6H12O6) is titrated with a solution of potassium permanganate (KMnO4). The balanced equation for the reaction is:
A. C6H12O6 + 6KMnO4 → 6K2CO3 + 6MnO2 + 6H2O
B. C6H12O6 + 6KMnO4 → 6K2CO3 + 6MnO2 + 6H2O + 6H2
C. C6H12O6 + 6KMnO4 → 6K2CO3 + 6MnO2 + 6H2O + 6H2
D. C6H12O6 + 6KMnO4 → 6K2CO3 + 6MnO2 + 6H2O + 6H2O
Question 13
A cell undergoing mitosis has a chromosome number of 46. If the cell divides into two daughter cells, what is the total number of chromosomes in the daughter cells?
A. 92
B. 46
C. 23
D. 92
Question 14
A patient is experiencing symptoms of hypothyroidism. Which of the following hormones is most likely to be deficient?
A. Thyroid-stimulating hormone (TSH)
B. Triiodothyronine (T3)
C. Thyroxine (T4)
D. Adrenaline
Question 15
In a population of Drosophila melanogaster, the frequency of the recessive allele 'b' is 0.2. If the population is in Hardy-Weinberg equilibrium, what is the frequency of the homozygous dominant genotype?
A. 0.2
B. 0.4
C. 0.6
D. 0.8

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