POST UTME CRAWFORD UNIVERSITY 2020 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
The process by which cells divide to produce two daughter cells is
A. Mitosis
B. Meiosis
C. Binary fission
D. Endoreduplication
Question 2
A patient has a visual acuity of 20/40. If the s\tandard visual acuity is 20/20, what is the patient's visual acuity in terms of the s\tandard?
A. 0.5
B. 0.6
C. 0.7
D. 0.8
Question 3
A 2.5-liter solution contains 1.8 liters of ethanol. What is the concentration of ethanol in the solution?
A. 0.72
B. 0.8
C. 0.9
D. 1
Question 4
The transport of subs\tances throughout the body is primarily facilitated by the circulatory system. Which of the following types of blood vessels is responsible for transporting oxygenated blood from the lungs to the rest of the body?
A. Arteries
B. Veins
C. Capillaries
D. Arterioles
Question 5
A plant has a root system with a taproot and a fibrous root system. Which of the following is a characteristic of the taproot?
A. It is a \single, large root that grows downward.
B. It is a network of smaller roots that spread out in all directions.
C. It is a type of root that stores food.
D. It is a type of root that absorbs water and nutrients.
Question 6
The xylem is a type of vascular tissue found in plants that is responsible for the transport of water and minerals from the roots to the leaves. What is the primary function of the xylem in relation to the transport of subs\tances?
A. To transport water and minerals from the roots to the leaves
B. To synthesize proteins
C. To store genetic information
D. To provide structural support to the plant
Question 7
The human digestive system is a complex process that involves the breakdown and absorption of nutrients from food. Which of the following is a type of digestive enzyme?
A. Amylase
B. Lactase
C. Tryp\sin
D. All of the above
Question 8
A diagram of the xylem and phloem tissues in a plant stem is shown below. Which of the following is a function of the xylem tissue?
A. Transport of sugars and amino acids
B. Transport of water and minerals
C. Storage of starch and proteins
D. Regulation of stomatal opening
Question 9
A diagram of the human digestive system is shown below. Which of the following is a function of the pancreas?
A. Production of bile
B. Production of digestive enzymes
C. Storage of glycogen
D. Absorption of nutrients
Question 10
The process of asexual reproduction involves the production of offspring without the involvement of gametes. Which of the following is an example of asexual reproduction?
A. Binary fission
B. Budding
C. Fragmentation
D. All of the above
Question 11
A plant with the genotype 'Tt' is crossed with a plant with the genotype 'tt'. What is the probability that the offspring will have the genotype 'TT'?
A. 0.25
B. 0.5
C. 0.75
D. 0.33
Question 12
A 50-gram sample of a compound contains 25 grams of carbon. What is the empirical formula of the compound?
A. C_2H_6
B. C_3H_8
C. C_4H_10
D. C_5H_12
Question 13
A patient has a blood pressure of 140/90 mmHg. If the diastolic pressure is 90 mmHg, what is the systolic pressure?
A. 120
B. 130
C. 140
D. 150
Question 14
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 the light-dep\endent reactions in photosynthesis?
A. ATP
B. NADPH
C. Oxygen
D. Water
Question 15
A diagram of a typical plant cell is shown below. Identify the part labeled 'A'.
A. Mitochondria
B. Chloroplast
C. Nucleus
D. Vacuole

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