POST UTME CHRISTOPHER UNIVERSITY 2019 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
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 2
A 5% solution of glu\cose in water is to be diluted with water to obtain 2 liters of a 1% solution. How many liters of the 5% solution should be used?
A. 0.5
B. 1
C. 1.5
D. 2
Question 3
A diagram of a neuron is shown below. What is the function of the d\endrites?
A. To transmit signals away from the cell body
B. To receive signals from other neurons
C. To produce neurotransmitters
D. To synthesize proteins
Question 4
A diagram shows a plant with a taproot and a stem with nodes and internodes. What is the function of the nodes?
A. To store food and water
B. To support the stem
C. To produce new plants
D. To absorb water and minerals
Question 5
A researcher is studying the effect of pH on the growth of E. coli. The data shows that the growth rate is highest at pH 7 and decreases as the pH deviates from 7. What type of relationship is this?
A. Direct Proportionality
B. Inverse Proportionality
C. Direct Variation
D. Inverse Variation
Question 6
The process of mitosis is a type of cell division that results in the production of two daughter cells that are genetically identical to the parent cell. Which of the following statements is true about mitosis?
A. It is a type of asexual reproduction.
B. It is a type of sexual reproduction.
C. It results in the production of two daughter cells that are genetically identical to the parent cell.
D. It results in the production of two daughter cells that are genetically different from the parent cell.
Question 7
The process of osmosis is a type of passive transport that occurs in cells. Which of the following statements is true about osmosis?
A. It is a type of active transport.
B. It is a type of passive transport.
C. It occurs in the presence of a concentration gradient.
D. It occurs in the absence of a concentration gradient.
Question 8
What is the process by which plants convert light energy into chemical energy?
A. Photosynthesis
B. Respiration
C. Transpiration
D. Osmosis
Question 9
The xylem tissue in plants is responsible for transporting water and minerals from the roots to the leaves. Which of the following is a characteristic of xylem tissue?
A. It is composed of dead cells
B. It is composed of living cells
C. It is responsible for transporting sugars from the leaves to the roots
D. It is responsible for transporting water and minerals from the roots to the leaves
Question 10
The sense organ responsible for detecting changes in light intensity is the?
A. Eye
B. Ear
C. Nose
D. Mouth
Question 11
A diagram shows a simple harmonic motion graph with a period of 2 seconds. What is the frequency of the motion?
A. 1 Hz
B. 2 Hz
C. 3 Hz
D. 4 Hz
Question 12
A 10% solution of salt in water is to be diluted with water to obtain 2 liters of a 5% solution. How many liters of the 10% solution should be used?
A. 0.5
B. 1
C. 1.5
D. 2
Question 13
A diagram of a plant cell is shown below. What is the function of the cell wall?
A. To provide structural support to the cell
B. To regulate the movement of materials in and out of the cell
C. To produce energy for the cell
D. To synthesize proteins
Question 14
In asexual reproduction, what is the primary mechanism by which genetic variation is introduced?
A. Mutation
B. Gene flow
C. Genetic drift
D. Genetic recombination
Question 15
What is the term for the process by which an organism's genetic information is altered by external factors?
A. Mutation
B. Genetic drift
C. Natural selection
D. Gene expression

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