POST UTME RHEMA UNIVERSITY 2021 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
In eco\logy, what is the term for the process by which plants convert light energy into chemical energy?
A. photosynthesis
B. respiration
C. transpiration
D. translocation
Question 2
A diagram of the human brain is shown below. Which part of the brain is responsible for controlling voluntary movements?
A. Cerebrum
B. Cerebellum
C. Brainstem
D. Spinal cord
Question 3
A diagram of a simple harmonic motion is shown below. Identify the part labeled 'A'.
A. Spring
B. Mass
C. Damping Force
D. Friction
Question 4
In the context of evolutionary theory, what is the term for the process by which a species becomes reproductively isolated from other species?
A. Speciation
B. Adaptation
C. Mutation
D. Genetic drift
Question 5
A species of fish has a respiratory rate of 20 breaths/min. If the water temperature is increased by 10°C, what is the new respiratory rate?
A. 15
B. 20
C. 25
D. 30
Question 6
The process of photosynthesis in plants involves the conversion of light energy into chemical energy in the form of glu\cose. Which of the following is a byproduct of this process?
A. Oxygen
B. Carbon dioxide
C. Water
D. Nitrogen
Question 7
In the context of eco\logical succession, what is the term for the initial stage of primary succession where the environment is completely devoid of life?
A. Pioneer community
B. Climax community
C. Succession stage
D. Primary succession
Question 8
The hormone insulin plays a crucial role in regulating blood sugar levels. What is the term for the process by which insulin stimulates the uptake of glu\cose by cells?
A. Glu\cose uptake
B. Glu\cose storage
C. Glu\cose release
D. Glu\cose synthesis
Question 9
The process of cellular respiration involves the breakdown of glu\cose to produce ATP. What is the term for the stage of cellular respiration where glu\cose is converted into pyruvate?
A. Glycolysis
B. Citric acid cycle
C. Electron transport chain
D. Oxidative phosphorylation
Question 10
In the context of microorganisms and diseases, what is the term for the process by which a pathogen adapts to its environment?
A. Antibiotic resis\tance
B. Vaccine development
C. Epigenetic modification
D. Horizontal gene transfer
Question 11
The human respiratory system is responsible for exchanging gases between the body and the environment. Which of the following is a critical component of this process?
A. Lungs
B. Trachea
C. Diaphragm
D. Bronchi
Question 12
A plant's xylem is responsible for transporting water and minerals from the roots to the leaves. What is the primary mechanism by which this transport occurs?
A. Transpiration pull
B. Root pressure
C. Capillary action
D. Osmosis
Question 13
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. 0.64
B. 0.36
C. 0.16
D. 0.04
Question 14
In genetics, what is the term for the process by which a gene is turned off or silenced?
A. gene expression
B. gene regulation
C. gene silencing
D. gene mutation
Question 15
A species of plant has a photosynthetic rate of 10 mg CO2/h. If the light intensity is increased by 50%, what is the new photosynthetic rate?
A. 5
B. 10
C. 15
D. 20

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