POST UTME ABU 2022 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
In the process of cellular respiration, what is the primary function of the electron transport chain?
A. To generate ATP
B. To produce NADH
C. To reduce oxygen
D. To increase pH
Question 2
A diagram of the human eye is shown below. What is the function of the part labeled 'A'?
A. To focus light on the retina
B. To regulate the amount of light entering the eye
C. To detect color
D. To detect movement
Question 3
A cell undergoing mitosis has a DNA content of 6.2 pg. If the DNA content of a haploid cell is 3.1 pg, what is the ploidy of the cell?
A. 2n
B. 3n
C. 4n
D. 6n
Question 4
A solution of glu\cose (C6H12O6) has a concentration of 0.5 M. If the volume of the solution is 250 mL, what is the number of moles of glu\cose present?
A. 0.0625
B. 0.125
C. 0.25
D. 0.5
Question 5
The process by which the body gets rid of waste products and excess subs\tances is called _______.
A. Excretion
B. Respiration
C. Photosynthesis
D. Evaporation
Question 6
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. However, this principle assumes a population is infinitely large. What is the term for the phenomenon that occurs when a population is finite and allele frequencies change due to genetic drift?
A. Genetic drift
B. Mutation
C. Gene flow
D. Bottleneck effect
Question 7
The diagram below shows the structure of a kidney. What is the function of the nephron?
A. To filter waste from the blood
B. To produce urine
C. To regulate blood pressure
D. To produce hormones
Question 8
A diagram of a plant cell is shown below. What is the function of the structure labeled 'A'?
A. Photosynthesis
B. Respiration
C. Cell division
D. Cell signaling
Question 9
In the context of osmoregulation, what is the term for the process by which the body maintains a stable concentration of electrolytes?
A. Osmosis
B. Diffusion
C. Active transport
D. Passive transport
Question 10
The process by which plants release water vapor into the air is called _______.
A. Transpiration
B. Respiration
C. Photosynthesis
D. Evaporation
Question 11
A diagram of a simple e\cosystem is shown below. What is the role of the part labeled 'B'?
A. To produce oxygen
B. To consume oxygen
C. To produce food
D. To consume food
Question 12
In the human visual system, what is the primary function of the optic nerve?
A. To transmit visual information to the brain
B. To regulate pupil size
C. To focus light on the retina
D. To produce tears
Question 13
A 2.5 L flask contains 0.5 mol of an ideal gas at 298 K. What is the pressure of the gas?
A. 1.01 x 10^5 Pa
B. 2.02 x 10^5 Pa
C. 3.03 x 10^5 Pa
D. 4.04 x 10^5 Pa
Question 14
A diagram shows a simple harmonic motion. Identify the part labeled 'C'?
A. spring
B. mass
C. amplitude
D. displacement
Question 15
A diagram shows a plant with a root system and a shoot system. What is the function of the root system?
A. To absorb water and nutrients
B. To produce glu\cose through photosynthesis
C. To support the plant's structure
D. To regulate the plant's temperature

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