POST UTME WELLSPRING UNIVERSITY 2018 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
What is the primary function of the mitochondria in a cell?
A. Protein synthesis
B. Cell signaling
C. Energy production
D. Cell division
Question 2
A diagram of the human respiratory system is shown below. Identify the structure labeled 'A' in the diagram.
A. Trachea
B. Lungs
C. Diaphragm
D. Bronchi
Question 3
In a population of 1000 individuals, 80% are homozygous dominant (BB), 15% are heterozygous (Bb), and 5% are homozygous recessive (bb). What is the frequency of the recessive allele (b) in this population?
A. 0.05
B. 0.15
C. 0.20
D. 0.25
Question 4
What is the process by which plants release water vapor into the air?
A. Photosynthesis
B. Respiration
C. Transpiration
D. Osmosis
Question 5
A population of rabbits is growing \logistically, with a carrying capacity of 1000 individuals. If the initial population size is 500 rabbits, what is the population size after 10 years?
A. 500
B. 750
C. 1000
D. 1250
Question 6
In the process of cellular respiration, what is the primary function of the mitochondria?
A. To synthesize proteins
B. To generate energy for the cell
C. To regulate cell growth
D. To transport molecules across the cell membrane
Question 7
The water cycle involves the movement of water between the Earth's oceans, atmosphere, and land. Which of the following is a part of the water cycle?
A. Evaporation
B. Condensation
C. Runoff
D. All of the above
Question 8
What is the term for the process by which an organism's genetic information is passed from one generation to the next?
A. Mutation
B. Genetic drift
C. Natural selection
D. Heritability
Question 9
In the e\cosystem of a freshwater lake, what is the primary role of phytoplankton?
A. To decompose organic matter
B. To produce oxygen through photosynthesis
C. To consume zooplankton
D. To regulate water temperature
Question 10
In the context of microorganisms and diseases, what is the term for the process by which a pathogen invades and colonizes a host?
A. Infection
B. Colonization
C. Toxification
D. Transduction
Question 11
A diagram of a food chain is shown below. Identify the producer in the food chain.
A. Grass
B. Rabbit
C. Fox
D. Snake
Question 12
A diagram of a cell division process is shown below. Identify the stage labeled 'A' in the diagram.
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Question 13
A diagram of a plant cell is shown below. What is the function of the structure labeled 'Z'?
A. To synthesize proteins
B. To generate energy
C. To regulate the cell's osmotic balance
D. To store water and nutrients
Question 14
A diagram of a human eye is shown below. What is the function of the structure labeled 'Y'?
A. To regulate the amount of light entering the eye
B. To focus light onto the retina
C. To detect light and transmit signals to the brain
D. To produce tears and lubricate the eye
Question 15
In a diploid cell, what is the total number of chromosomes in the somatic cells?
A. 46
B. 92
C. 23
D. 46

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