POST UTME COAL CITY UNIVERSITY 2020 Biology | Objective

Are you preparing for POST UTME COAL CITY UNIVERSITY exams? Reviewing past questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2020 Biology (Objective) questions designed to simulate the real exam environment.

Practice these randomly selected questions to test your readiness.

Question 1
In a typical xylem vessel, what is the primary function of the lignin?
Correct A. To provide structural support to the vessel
B. To facilitate the transport of water and minerals
C. To regulate the rate of transpiration
D. To protect the vessel from pathogens

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 2
A patient with a rare genetic disorder has a mutation in the HFE gene. Which of the following is a possible consequence of this mutation?
Correct A. Increased risk of developing hemochromatosis
B. Decreased risk of developing hemochromatosis
C. Increased risk of developing thalassemia
D. Decreased risk of developing sickle cell anemia

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 3
A diagram of a plant cell is shown below. What is the function of the mitochondria?
A. To synthesize proteins
B. To store genetic information
Correct C. To generate energy for the cell
D. To regulate cell growth

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 4
A diagram of a human eye is shown below. What is the function of the lens?
A. To detect light
Correct B. To focus light
C. To regulate pupil size
D. To produce tears

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 5
A diagram of a bacterial cell is shown below. What is the function of the cell wall?
A. To synthesize proteins
B. To store genetic information
Correct C. To maintain cell shape
D. To regulate cell growth

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 6
In a photosynthetic pathway, the enzyme responsible for the light-dep\endent reaction is:
A. RuBisCO
B. ATP synthase
Correct C. Photosystem II
D. Ribulose-1,5-bisphosphate carboxylase

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 7
The process by which an organism's genetic information is passed from one generation to the next is called:
A. Mutation
B. Genetic drift
C. Natural selection
Correct D. Heritability

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 8
The hormone responsible for regulating the growth and development of plants is:
Correct A. Auxin
B. Gibberellin
C. Cytokinin
D. Ethylene

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 9
The process by which an organism's genetic information is modified is called:
Correct A. Mutation
B. Genetic drift
C. Natural selection
D. Gene expression

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 10
The hormone responsible for regulating the reproductive cycle of females is:
Correct A. Estrogen
B. Progesterone
C. Testosterone
D. Insulin

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
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
Correct B. To generate ATP through oxidative phosphorylation
C. To produce NADH and FADH2
D. To reduce oxygen to water

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 12
A plant's xylem is responsible for transporting what type of subs\tances?
Correct A. water and minerals
B. sugars and amino acids
C. hormones and waste products
D. oxygen and carbon dioxide

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 13
A microorganism that causes disease in humans is an example of what type of microorganism?
Correct A. pathogen
B. symbiont
C. mu\tant
D. variant

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 14
The process of mitosis results in what type of cell division?
A. meiosis
Correct B. mitosis
C. binary fission
D. \endoreduplication

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 15
A diagram of a plant's root system would show what type of roots?
Correct A. taproot
B. adventitious root
C. fibrous root
D. modified root

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 16
In a eukaryotic cell, the process of photosynthesis occurs in the mitochondria. Which of the following statements is correct?
A. The mitochondria is the site of photosynthesis in eukaryotic cells.
Correct B. The mitochondria is the site of cellular respiration in eukaryotic cells.
C. The mitochondria is the site of protein synthesis in eukaryotic cells.
D. The mitochondria is the site of DNA replication in eukaryotic cells.

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 17
A population of rabbits is growing at a rate of 20% per year. If the initial population is 100 rabbits, what will be the population after 5 years?
A. 1000
B. 500
Correct C. 2000
D. 3000

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 18
A diagram of a plant cell is shown below. What is the function of the part labeled 'A'?
A. To synthesize proteins
Correct B. To store genetic information
C. To regulate cell growth
D. To transport materials

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 19
A species of bird is found in a specific type of habitat. Which of the following statements is correct?
A. The species is found in a specific type of habitat.
B. The species is found in a variety of habitats.
Correct C. The species is found only in a specific type of habitat.
D. The species is found in no specific type of habitat.

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 20
A diagram of a human blood vessel is shown below. What is the function of the part labeled 'B'?
Correct A. To transport oxygen to the body
B. To transport carbon dioxide from the body
C. To regulate body temperature
D. To synthesize proteins

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 21
In a tropical rainforest, the presence of a large number of epiphytes such as orchids and ferns is an example of which type of eco\logical relationship?
Correct A. Mutualism
B. Commensalism
C. Parasitism
D. Competition

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 22
The process by which plants release water vapor into the air is known as
Correct A. Transpiration
B. Respiration
C. Photosynthesis
D. Evaporation

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 23
The sense organ responsible for detecting changes in sound pressure is the
Correct A. Ear
B. Eye
C. Nose
D. Mouth

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 24
The process by which the body removes waste products is known as
Correct A. Excretion
B. Osmoregulation
C. Respiration
D. Photosynthesis

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 25
The type of tissue that provides support and structure to plants is
A. Dermal tissue
B. Vascular tissue
Correct C. Ground tissue
D. Epidermal tissue

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics

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:
Chat with Support