POST UTME CALEB UNIVERSITY 2021 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
In the context of osmoregulation, what is the primary function of the kidneys in maintaining electrolyte balance?
A. Excreting excess water
B. Regulating electrolyte levels
C. Maintaining acid-base balance
D. Controlling blood pressure
Question 2
The respiratory system is responsible for exchanging oxygen and carbon dioxide. Which of the following is a type of gas that is exchanged during respiration?
A. Oxygen.
B. Carbon dioxide.
C. Nitrogen.
D. Hydrogen.
Question 3
The integumentary system is responsible for protecting the body from external damage. Which of the following is a type of tissue that is found in the skin?
A. Epithelial tissue.
B. Connective tissue.
C. Muscle tissue.
D. Nervous tissue.
Question 4
The skeletal system is responsible for providing support and structure to the body. Which of the following is a type of bone that is found in the skull?
A. Long bone.
B. Short bone.
C. Flat bone.
D. Irregular bone.
Question 5
The Hardy-Weinberg principle states that the frequency of alleles in a population will remain cons\tant from generation to generation in the absence of genetic drift, mutation, and gene flow. Which of the following conditions is necessary for the Hardy-Weinberg principle to hold?
A. Random mating
B. Large population size
C. No genetic drift
D. All of the above
Question 6
The nervous system is responsible for transmitting signals throughout the body. Which of the following types of neurons is responsible for transmitting signals from sensory receptors to the central nervous system?
A. Motor neurons
B. Sensory neurons
C. Interneurons
D. Glial cells
Question 7
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. 0.16
B. 0.36
C. 0.64
D. 0.84
Question 8
The process of excretion in humans involves the removal of waste products from the body through the
A. liver
B. kidneys
C. lungs
D. skin
Question 9
In a eukaryotic cell, the process of photosynthesis occurs in the
A. mitochondria
B. chloroplast
C. nucleus
D. cytoplasm
Question 10
A study on the growth of a plant found that the rate of growth is directly proportional to the amount of light it receives. If the plant receives 100 units of light, it grows at a rate of 2 cm/h. What is the rate of growth when it receives 200 units of light?
A. 1
B. 2
C. 4
D. 6
Question 11
The concept of natural selection was first proposed by Charles Darwin in his book 'On the Origin of Species'. Which of the following statements accurately describes the process of natural selection?
A. The process by which organisms adapt to their environment through genetic drift
B. The process by which organisms with favorable traits are more likely to survive and reproduce
C. The process by which organisms with unfavorable traits are more likely to survive and reproduce
D. The process by which organisms adapt to their environment through mutation
Question 12
The human digestive system consists of the mouth, esophagus, stomach, small intestine, and large intestine. The primary function of the
A. mouth
B. esophagus
C. stomach
D. small intestine
Question 13
A species of bird has a wing span of 1.5 meters. If the bird flies at a speed of 50 km/h, what is its acceleration?
A. 0.05 m/s^2
B. 0.5 m/s^2
C. 5 m/s^2
D. 50 m/s^2
Question 14
The process of mitosis in eukaryotic cells results in the production of daughter cells that are genetically identical to the parent cell. Which of the following stages of mitosis is responsible for the separation of sister chromatids?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Question 15
The process of meiosis results in the production of gametes, which are haploid cells. Which of the following is a characteristic of meiosis?
A. It results in the production of diploid cells
B. It results in the production of haploid cells
C. It involves the replication of DNA
D. It involves the separation of homo\logous chromosomes

Master the Exam!

You've seen a preview, but there are thousands more questions plus AI tutor to break down complex solutions.

Unlock Full Access Available for Android & Windows
Help others prepare! Share this practice hub: