POST UTME BOWEN UNIVERSITY 2022 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A diagram of the human excretory system is shown below. What is the function of the kidneys?
A. Waste removal
B. Electrolyte regulation
C. Fluid balance
D. pH regulation
Question 2
The process by which cells divide to produce two daughter cells with the same number of chromosomes as the parent cell is called?
A. Mitosis
B. Meiosis
C. Binary fission
D. Endoreduplication
Question 3
The process of cellular respiration in cells involves the breakdown of glu\cose to produce energy. Which of the following is a stage of cellular respiration?
A. Glycolysis
B. Citric acid cycle
C. Electron transport chain
D. Fermentation
Question 4
The type of respiration that occurs in the absence of oxygen is
A. Aerobic respiration
B. Anaerobic respiration
C. Fermentation
D. Oxidative phosphorylation
Question 5
The gas exchange process in plants occurs in the
A. Roots
B. Stems
C. Leaves
D. Bark
Question 6
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. 0.16
B. 0.24
C. 0.32
D. 0.4
Question 7
A plant has a root system with a total surface area of 100 cm^2. If the root system is 50% efficient in absorbing water, what is the maximum amount of water that can be absorbed by the plant per hour?
A. 10 mL
B. 20 mL
C. 50 mL
D. 100 mL
Question 8
A researcher wants to study the effect of temperature on the growth rate of E. coli. She sets up an experiment with three different temperatures: 25°C, 30°C, and 35°C. What type of experimental design is this?
A. Controlled experiment
B. Quasi-experiment
C. Correlational study
D. Survey study
Question 9
A diagram of the human nervous system is shown below. What is the function of the cerebellum?
A. Motor control
B. Sensory proces\sing
C. Cognitive function
D. Emotional regulation
Question 10
In a population of E. coli bacteria, the average generation time is 20 minutes. If the initial population size is 10^6 cells, and the population doubles every 20 minutes, what is the population size after 1 hour?
A. 10^7
B. 10^8
C. 10^9
D. 10^10
Question 11
In a population of Drosophila melanogaster, the frequency of the recessive allele 'r' is 0.2. If the population size is 1000, how many individuals are expected to be homozygous recessive?
A. 180
B. 200
C. 220
D. 240
Question 12
A 30-year-old female patient presents with symptoms of infertility. Her husband has a normal semen analysis. What is the next step in the evaluation of this patient?
A. Hysterosalpingogram (HSG)
B. Laparoscopy
C. In vitro fertilization (IVF)
D. Endometrial biopsy
Question 13
The Hardy-Weinberg principle states that the frequency of alleles in a population will remain cons\tant from generation to generation if five certain conditions are met. Which of the following is NOT one of these conditions?
A. Large population size
B. Random mating
C. No mutation
D. No gene flow
Question 14
A 50-year-old male patient presents with symptoms of chronic kidney disease. His serum creatinine level is 2.5 mg/dL. What is the estimated glomerular filtration rate (eGFR) of this patient?
A. 15 mL/min/1.73 m^2
B. 30 mL/min/1.73 m^2
C. 45 mL/min/1.73 m^2
D. 60 mL/min/1.73 m^2
Question 15
A 2.5 L flask contains 0.5 M NaOH. If 25 mL of 1.5 M HCl is added to the flask, what is the resulting concentration of the solution?
A. 0.6 M
B. 0.7 M
C. 0.8 M
D. 0.9 M

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