POST UTME REDEEMERS UNIVERSITY 2022 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A diagram of a plant cell is shown below. What is the function of the cell wall?
A. To provide structural support
B. To regulate cell growth
C. To transport subs\tances
D. To synthesize proteins
Question 2
A diagram of the human respiratory system is shown below. Which part is responsible for the exchange of oxygen and carbon dioxide?
A. Lungs
B. Trachea
C. Diaphragm
D. Bronchi
Question 3
A diagram of a human kidney is shown below. What is the primary function of the nephrons?
A. To filter waste from the blood
B. To regulate blood pressure
C. To synthesize hormones
D. To regulate pH
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. 0.25
C. 0.75
D. 0.33
Question 5
In a population of E. coli, the frequency of the gene for resis\tance to ampicillin is 0.2. If 1000 bacteria are plated on agar containing ampicillin, how many are expected to be resis\tant?
A. 100
B. 200
C. 400
D. 600
Question 6
A patient is diagnosed with a bacterial infection. Which of the following microorganisms is most likely responsible for the infection?
A. Escherichia coli
B. Staphylococcus aureus
C. Pseudomonas aeruginosa
D. Klebsiella pneumoniae
Question 7
In the xylem transport system, what is the primary function of the xylem parenchyma cells?
A. To produce xylem sap
B. To store water and minerals
C. To transport xylem sap
D. To regulate xylem sap flow
Question 8
The diagram below shows a cross-section of a kidney. Which part of the kidney is responsible for filtering waste products from the blood?
A. Cortex
B. Medulla
C. Renal pelvis
D. Collecting duct
Question 9
A diagram of a human heart is shown below. What is the primary function of the atria?
A. To pump blood to the lungs
B. To pump blood to the body
C. To regulate blood pressure
D. To synthesize hormones
Question 10
The type of respiration that occurs in the presence of oxygen is called
A. Aerobic Respiration
B. Anaerobic Respiration
C. Fermentation
D. Oxidation
Question 11
A diagram of a human eye is shown below. What is the function of the structure labeled 'B'?
A. To focus light on the retina
B. To detect changes in light intensity
C. To regulate the amount of light entering the eye
D. To transmit visual signals to the brain
Question 12
In a eukaryotic cell, the process of cell division that results in the production of four daughter cells, each with the same number and kind of chromosomes as the parent cell, is called
A. Mitosis
B. Meiosis
C. Binary Fission
D. Endosymbiosis
Question 13
The process by which plants release water vapor into the air is called
A. Transpiration
B. Respiration
C. Photosynthesis
D. Osmosis
Question 14
What is the primary mechanism by which plants regulate their water balance?
A. Transpiration
B. Photosynthesis
C. Respiration
D. Osmosis
Question 15
The diagram below shows a cross-section of a plant root. Which part of the root is responsible for absorbing water and minerals from the soil?
A. Cortex
B. Stele
C. Xylem
D. Phloem

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