POST UTME ELIZADE UNIVERSITY 2017 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A diagram of the human eye is shown below. Which part of the eye is responsible for detecting light?
A. Cornea
B. Iris
C. Lens
D. Retina
Question 2
In a eukaryotic cell, the process of photosynthesis occurs in the
A. Mitochondria
B. Chloroplast
C. Nucleus
D. Endoplasmic reticulum
Question 3
In a tropical rainforest e\cosystem, the primary consumers are primarily composed of which of the following groups?
A. Herbivorous insects
B. Fruit-eating birds
C. Small mammals
D. Fungi
Question 4
The process by which an organism becomes better suited to its environment is called
A. Natural Selection
B. Genetic Drift
C. Gene Flow
D. Mutation
Question 5
A researcher is studying the effects of light intensity on plant growth. Which of the following types of tissues would be most affected by changes in light intensity?
A. Parenchyma
B. Collenchyma
C. Sclerenchyma
D. Xylem
Question 6
A diagram of the human eye is shown below. What is the primary function of the lens?
A. To focus light on the retina
B. To detect changes in light intensity
C. To regulate the amount of light entering the eye
D. To produce tears
Question 7
A patient with a history of tuberculosis is diagnosed with a new case of tuberculosis. Which of the following is the most likely cause of the new case?
A. Reactivation of latent tuberculosis
B. Exogenous reinfection
C. Genetic predisposition
D. Environmental factors
Question 8
A diagram of the human nervous system is shown below. Which of the following structures is responsible for the transmission of nerve impulses?
A. D\endrite
B. Axon
C. Synapse
D. Myelin sheath
Question 9
A researcher is studying the effect of pH on the growth of E. coli bacteria. Which of the following is a likely consequence of a decrease in pH?
A. Increased growth rate
B. Decreased growth rate
C. No effect on growth rate
D. Increased mortality rate
Question 10
A researcher is studying the process of osmoregulation in a desert-dwelling organism. Which of the following would be the most likely mechanism for this organism to conserve water?
A. Producing a high concentration of urea
B. Concentrating the urine through the kidneys
C. Excreting excess water through the skin
D. Producing a high concentration of glu\cose
Question 11
In the process of cellular respiration, what is the primary function of the electron transport chain?
A. To generate ATP through substrate-level phosphorylation
B. To pump protons across the mitochondrial inner membrane
C. To produce NADH and FADH2
D. To reduce oxygen to water
Question 12
A species of plant is classified as belonging to the kingdom Plantae. Which of the following characteristics is most likely to be true about this species?
A. It has a cell wall made of cellulose
B. It has flagella for movement
C. It has a nucleus with a true mitotic spindle
D. It has a body cavity with a fluid called lymph
Question 13
The discovery of the structure of DNA by James Watson and Francis Crick is an example of
A. The Scientific Method
B. The Process of Elimination
C. The Double Helix Model
D. The Theory of Evolution
Question 14
A diagram of a human digestive system is shown below. Which of the following structures is responsible for the breakdown of proteins?
A. Stomach
B. Small intestine
C. Liver
D. Pancreas
Question 15
The process by which plants convert light energy into chemical energy is called
A. Photosynthesis
B. Respiration
C. Transpiration
D. Evaporation

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