POST UTME AL-HIKMAH UNIVERSITY 2019 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
Asexual reproduction in plants can occur through the formation of
A. Seeds
B. Spores
C. Buds
D. Rhizomes
Question 2
The equation for the reaction between sodium hydroxide and hydrochloric acid is: \( \text{NaOH} + \text{HCl} \rightarrow \text{NaCl} + \text{H}_2\text{O} \). What is the type of reaction?
A. synthesis reaction
B. decomposition reaction
C. replacement reaction
D. neutralization reaction
Question 3
The process of cellular respiration in which glu\cose is converted into ATP is an example of a ______ reaction.
A. catabolic
B. anabolic
C. fermentation
D. photosynthesis
Question 4
In the context of the human visual system, what is the primary function of the optic nerve?
A. To transmit visual information from the retina to the brain
B. To regulate the amount of light entering the eye
C. To focus light onto the retina
D. To detect color and brightness
Question 5
A plant has a photosynthetic rate of 10 mg CO2/h. If the plant is exposed to light for 8 hours, how much CO2 is absorbed?
A. 60
B. 80
C. 100
D. 120
Question 6
In the context of cell division, what is the primary function of the centrioles during the prophase stage of mitosis?
A. To form the spindle fibers
B. To replicate the DNA
C. To condense the chromosomes
D. To form the nuclear envelope
Question 7
The process of photosynthesis in plants involves the conversion of light energy into chemical energy in the form of glu\cose. What is the byproduct of this process?
A. oxygen
B. carbon dioxide
C. water
D. glu\cose
Question 8
A population of birds is observed to have a mean height of 20 cm. If the s\tandard deviation of the population is 2 cm, what is the probability that a randomly selected bird will have a height greater than 22 cm?
A. 0.0228
B. 0.1587
C. 0.3413
D. 0.4772
Question 9
A patient is diagnosed with a rare genetic disorder characterized by an inability to synthesize the amino acid phenylalanine. Which of the following enzymes is deficient in this disorder?
A. Phenylalanine hydroxylase
B. Tyro\sine aminotransferase
C. Alanine transaminase
D. Aspartate transaminase
Question 10
The diagram below shows the structure of a neuron. Identify the part labeled B.
A. axon
B. d\endrite
C. cell body
D. myelin sheath
Question 11
A population of rabbits is growing according to the \logistic growth model. If the initial population size is 100 and the carrying capacity is 1000, what is the population size after 5 generations?
A. 500
B. 750
C. 900
D. 950
Question 12
A diagram of the human nervous system is shown below. Which part of the system is responsible for transmitting signals from the brain to the muscles?
A. Brain
B. Spinal cord
C. Nerve fibers
D. Muscles
Question 13
A diagram of the human eye is shown below. Which part of the eye is responsible for adjusting the size of the pupil?
A. Cornea
B. Iris
C. Lens
D. Retina
Question 14
In the context of evolutionary theory, what is the primary mechanism driving the adaptation of populations to changing environments?
A. Natural Selection
B. Genetic Drift
C. Gene Flow
D. Mutation
Question 15
A diagram of the human brain is shown below. Which part of the diagram is responsible for proces\sing visual information?
A. The cerebrum
B. The cerebellum
C. The brainstem
D. The spinal cord

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