POST UTME LAUTECH 2024 Biology | Objective

Are you preparing for POST UTME LAUTECH exams? Reviewing past questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2024 Biology (Objective) questions designed to simulate the real exam environment.

Practice these randomly selected questions to test your readiness.

Question 1
In a photosynthetic pathway, which of the following is the primary acceptor of light energy?
Correct A. Chlorophyll a
B. Chlorophyll b
C. Pheophytin
D. Plastocyanin

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 2
A plant cell undergoes mitosis. What is the result of this process?
A. Two daughter cells with half the number of chromosomes
B. One daughter cell with the same number of chromosomes
Correct C. Two daughter cells with the same number of chromosomes
D. No change in the number of chromosomes

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 3
A diagram of a plant cell is shown below. Identify the part labeled A.
A. Mitochondria
B. Chloroplast
C. Vacuole
Correct D. Nucleus

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 4
A population of bacteria is growing exponentially. If the initial population is 100 and the growth rate is 20% per hour, what is the population after 3 hours?
A. 1000
B. 2000
C. 4000
Correct D. 8000

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 5
A genetic cross is performed between two pea plants. One plant is homozygous dominant for the trait and the other plant is homozygous recessive. What is the probability that the offspring will be homozygous dominant?
Correct A. 0.5
B. 0.25
C. 0.75
D. 0.9

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 6
In the context of respiration, what is the primary function of the mitochondria in the process of cellular respiration?
Correct A. To generate ATP through the citric acid cycle
B. To produce NADH and FADH2 through glycolysis
C. To synthesize glu\cose from CO2 and H2O
D. To break down glu\cose into pyruvate through glycolysis

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 7
What is the primary mechanism by which the nervous system coordinates the movement of muscles in the human body?
A. Through the release of neurotransmitters at synapses
B. Through the contraction of muscle fibers
Correct C. Through the transmission of electrical signals along axons
D. Through the regulation of hormone levels

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 8
What is the primary mechanism by which the kidneys regulate the concentration of ions in the blood?
Correct A. Through the reabsorption of ions in the proximal convoluted tubule
B. Through the secretion of ions in the distal convoluted tubule
C. Through the regulation of hormone levels
D. Through the filtration of ions in the glomerulus

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 9
What is the primary mechanism by which the heart pumps blood throughout the body?
A. Through the contraction of cardiac muscle fibers
B. Through the relaxation of cardiac muscle fibers
C. Through the regulation of hormone levels
Correct D. Through the transmission of electrical signals along the cardiac conduction system

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 10
What is the primary mechanism by which the lungs exchange oxygen and carbon dioxide?
Correct A. Through the diffusion of gases across the alveolar-capillary membrane
B. Through the contraction of diaphragmatic muscle fibers
C. Through the regulation of hormone levels
D. Through the transmission of electrical signals along the phrenic nerve

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 11
In a tropical rainforest e\cosystem, the primary consumers are primarily composed of what type of organisms?
Correct A. Herbivorous insects
B. Carnivorous mammals
C. Decomposers
D. Fungi

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 12
The process by which plants release water vapor into the atmosphere 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 13
The diagram below represents a cross-section of a plant root. Identify the structure labeled A.
Correct A. Xylem
B. Phloem
C. Cortex
D. Endodermis

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 14
The graph below represents the growth of a population over time. What is the name of the stage where the population grows rapidly?
Correct A. Exponential growth
B. Logistic growth
C. Stationary phase
D. Decline phase

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 15
The equation \( \frac{dP}{dt} = rP left\( 1 - \frac{P}{K} \right \ \) ) represents the growth of a population. What is the value of K?
A. 10
B. 20
Correct C. 30
D. 40

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 16
In the context of osmoregulation, what is the primary function of the kidneys in maintaining electrolyte balance?
A. To regulate the amount of water in the body
Correct B. To maintain the balance of electrolytes in the blood
C. To remove waste products from the body
D. To regulate body temperature

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 17
A diagram of the human eye is shown below. Which part of the eye is responsible for focu\sing light onto the retina?
A. The cornea
Correct B. The lens
C. The retina
D. The pupil

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 18
In the process of meiosis, what is the primary purpose of cros\sing over?
Correct A. To increase genetic variation
B. To decrease genetic variation
C. To increase the number of chromosomes
D. To decrease the number of chromosomes

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 19
A diagram of the human heart is shown below. Which part of the heart is responsible for pumping blood to the lungs?
A. The left ventricle
Correct B. The right ventricle
C. The pulmonary artery
D. The aorta

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 20
In the context of genetics, what is the primary function of the mitochondria?
Correct A. To produce energy for the cell
B. To synthesize proteins
C. To regulate gene expression
D. To repair DNA damage

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 21
In a eukaryotic cell, the process of mitosis is initiated by the breakdown of the nuclear envelope. Which of the following structures is responsible for this breakdown?
Correct A. Nuclear lamina
B. Nuclear envelope
C. Mitotic spindle
D. Centrioles

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 22
A plant root grows in a medium containing a mixture of nutrients. Which of the following transport systems is responsible for the uptake of these nutrients?
A. Xylem
B. Phloem
Correct C. Endodermis
D. Pericycle

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 23
In a sexual reproduction process, the fusion of gametes results in the formation of a zygote. Which of the following types of genetic variation is responsible for the diversity of offspring?
A. Genetic drift
B. Mutation
C. Gene flow
Correct D. Genetic recombination

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 24
Asexual reproduction involves the production of offspring without the involvement of gametes. Which of the following types of asexual reproduction involves the production of offspring through the fragmentation of a parent organism?
A. Budding
B. Binary fission
Correct C. Fragmentation
D. Regeneration

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 25
In a eukaryotic cell, the process of meiosis is initiated by the replication of chromosomes. Which of the following structures is responsible for the replication of chromosomes?
Correct A. Nucleus
B. Mitotic spindle
C. Centrioles
D. Telomeres

Correct Answer: A

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