POST UTME ACHIEVERS UNIVERSITY 2017 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
In a photosynthetic pathway, which of the following pigments is primarily responsible for absorbing light energy in the blue-violet region of the visible spectrum?
A. Chlorophyll a
B. Chlorophyll b
C. Carotenoids
D. Phycobiliproteins
Question 2
The process by which an organism's genetic information is altered is known as
A. Mutation
B. Genetic Drift
C. Gene Flow
D. Natural Selection
Question 3
In the context of evolutionary theory, what is the term for the process by which a species becomes adapted to its environment?
A. Natural selection
B. Genetic drift
C. Gene flow
D. Mutation
Question 4
A 2.5 L flask contains 0.5 M glu\cose solution. If 10 mL of 1 M HCl is added to the solution, what is the new concentration of glu\cose?
A. 0.45 M
B. 0.50 M
C. 0.55 M
D. 0.60 M
Question 5
In the process of osmoregulation, what is the primary mechanism by which the kidneys regulate the concentration of ions in the blood?
A. Reabsorption of ions from the filtrate
B. Secretion of ions into the filtrate
C. Excretion of ions in the urine
D. Regulation of ion channels in the kidneys
Question 6
In the context of evolutionary theory, what is the term for the process by which a species becomes extinct?
A. Natural selection
B. Genetic drift
C. Gene flow
D. Mass extinction
Question 7
The process by which an organism's genetic information is passed from one generation to the next is known as
A. Heritability
B. Genetic Drift
C. Gene Flow
D. Mutation
Question 8
A diagram of the human circulatory system is shown below. What is the function of the coronary arteries?
A. Supplying oxygen to the heart muscle
B. Regulating blood pressure
C. Filtering blood
D. Producing red blood cells
Question 9
The process by which an organism's genetic information is altered is known as
A. Mutation
B. Genetic Drift
C. Gene Flow
D. Natural Selection
Question 10
A 35-year-old man presents with symptoms of chronic kidney disease. Which of the following organs is most likely affected?
A. Liver
B. Pancreas
C. Kidneys
D. Spleen
Question 11
The process by which an organism's genetic information is passed from one generation to the next is known as
A. Mutation
B. Genetic Drift
C. Gene Flow
D. Heritability
Question 12
The process by which plants convert light energy into chemical energy is known as
A. Respiration
B. Photosynthesis
C. Transpiration
D. Translocation
Question 13
Which of the following is a characteristic of asexual reproduction?
A. Production of offspring with genetic variation
B. Production of offspring with identical genetic makeup
C. Production of offspring with increased genetic diversity
D. Production of offspring with decreased genetic diversity
Question 14
A diagram of a nerve cell is shown below. Which of the following structures is responsible for the transmission of nerve impulses?
A. D\endrite
B. Axon
C. Cell body
D. Myelin sheath
Question 15
A 5 mL sample of 0.1 M NaOH is added to 10 mL of 0.1 M HCl. What is the resulting pH?
A. 1
B. 2
C. 3
D. 4

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