POST UTME BELLS UNIVERSITY 2020 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
What is the primary function of the epithelial tissue in the human body?
A. To provide structural support
B. To produce movement
C. To regulate the exchange of subs\tances
D. To store energy
Question 2
In the context of evolutionary bio\logy, what is the primary mechanism driving the process of speciation?
A. Genetic drift
B. Natural selection
C. Mutation
D. Gene flow
Question 3
In the process of osmoregulation, which of the following is a key mechanism by which the kidneys help to regulate the concentration of ions in the blood?
A. Reabsorption of ions from the filtrate
B. Excretion of ions into the urine
C. Regulation of the amount of water in the blood
D. Production of antidiuretic hormone
Question 4
The structure of the human eye is an example of which type of tissue?
A. Connective tissue
B. Epithelial tissue
C. Muscle tissue
D. Nervous tissue
Question 5
The process of cell division in which the chromosomes are not visible is?
A. Mitosis
B. Meiosis
C. Endoreduplication
D. Amphimixis
Question 6
In the context of evolutionary theory, what is the term for the process by which a species becomes reproductively isolated from other species?
A. Speciation
B. Adaptation
C. Natural selection
D. Genetic drift
Question 7
In the context of respiration, what is the term for the process by which oxygen is transported from the lungs to the tissues?
A. Diffusion
B. Osmosis
C. Active transport
D. Hemoglobin-mediated transport
Question 8
What is the term for the movement of molecules from an area of high concentration to an area of low concentration?
A. Diffusion
B. Osmosis
C. Active transport
D. Passive transport
Question 9
Which of the following tissues is primarily responsible for the production of mucus in the respiratory system?
A. Epithelial tissue
B. Connective tissue
C. Muscle tissue
D. Nervous tissue
Question 10
In the process of cellular respiration, which of the following is the primary source of energy for the cell?
A. Glu\cose
B. ATP
C. NADH
D. FADH2
Question 11
In a population of Drosophila melanogaster, the frequency of the recessive allele 'r' is 0.2. If the population size is 1000, what is the expected number of homozygous recessive individuals?
A. 10
B. 20
C. 200
D. 1000
Question 12
In a tropical rainforest, the presence of a large number of epiphytes such as orchids and ferns is an example of which eco\logical process?
A. Niche partitioning
B. Symbiotic relationship
C. Eco\logical succession
D. Epiphytic colonization
Question 13
The process of gas exchange in plants occurs in which part of the leaf?
A. Stomatal cavity
B. Palisade mesophyll
C. Spongy mesophyll
D. Xylem tissue
Question 14
In a human cell, what is the primary function of the mitochondria?
A. Protein synthesis
B. Cell signaling
C. Energy production
D. Cell division
Question 15
A 50-year-old woman has been experiencing symptoms of irritable bowel syndrome (IBS) for the past 5 years. Her symptoms include abdominal pain, bloating, and changes in bowel movements. Which of the following is the most likely cause of her symptoms?
A. Inflammatory bowel disease (IBD)
B. Gastroesophageal reflux disease (GERD)
C. Functional dyspepsia
D. Small intestine bacterial overgrowth (SIBO)

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