POST UTME UNIPORT 2017 Biology | Objective

Are you preparing for POST UTME UNIPORT exams? Reviewing past questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2017 Biology (Objective) questions designed to simulate the real exam environment.

Practice these randomly selected questions to test your readiness.

Question 1
In the process of osmoregulation, what is the primary function of the kidneys in a hypertonic environment?
Correct A. To excrete excess water
B. To reabsorb excess ions
C. To produce antidiuretic hormone
D. To regulate blood pH

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 2
A plant cell is placed in a solution with a higher concentration of solutes than the cell's internal environment. What will happen to the cell?
Correct A. The cell will swell and eventually burst
B. The cell will shrink and lose water
C. The cell will remain unchanged
D. The cell will undergo mitosis

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 3
In the process of digestion, what is the primary function of the enzyme amylase?
A. To break down proteins into peptides
Correct B. To break down carbohydrates into simple sugars
C. To break down fats into fatty acids
D. To break down nucleic acids into nucleotides

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 4
A diagram of the human circulatory system is shown below. What is the function of the pulmonary valve?
Correct A. To regulate blood flow from the heart to the lungs
B. To regulate blood flow from the lungs to the heart
C. To regulate blood flow from the heart to the aorta
D. To regulate blood flow from the aorta to the heart

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 5
In the process of evolution, what is the primary mechanism by which species adapt to their environment?
Correct A. Natural selection
B. Genetic drift
C. Gene flow
D. Mutation

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 6
In a population of 1000 bacteria, 80% are resis\tant to a particular antibiotic. If 200 bacteria are randomly selected for treatment, what is the probability that at least 150 will be resis\tant to the antibiotic?
Correct A. 0.95
B. 0.90
C. 0.85
D. 0.80

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 7
A cell is placed in a solution containing 0.1 M glu\cose and 0.2 M fructose. If the cell membrane is permeable to both glu\cose and fructose, what is the concentration of glu\cose in the cell after 10 minutes?
A. 0.05 M
Correct B. 0.10 M
C. 0.15 M
D. 0.20 M

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 8
A person with normal vision can see objects clearly at a dis\tance of 25 cm. If the person's eye is 1.5 cm from the object, what is the magnification of the eye?
A. 1.5
Correct B. 2.0
C. 2.5
D. 3.0

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 9
A plant grows in a solution containing 0.1 M glu\cose and 0.2 M fructose. If the plant's roots are permeable to both glu\cose and fructose, what is the concentration of glu\cose in the plant after 10 minutes?
A. 0.05 M
Correct B. 0.10 M
C. 0.15 M
D. 0.20 M

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 10
A person with normal vision can see objects clearly at a dis\tance of 25 cm. If the person's eye is 1.5 cm from the object, what is the magnification of the eye?
A. 1.5
Correct B. 2.0
C. 2.5
D. 3.0

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 11
In asexual reproduction, what is the primary mechanism of genetic variation?
A. Mutation
Correct B. Genetic recombination
C. Gene duplication
D. Gene deletion

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 12
What is the primary function of the Golgi apparatus in eukaryotic cells?
A. Protein synthesis
B. Cell signaling
C. Lipid synthesis
Correct D. Protein modification

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 13
What is the process by which plants convert light energy into chemical energy?
A. Respiration
Correct B. Photosynthesis
C. Transpiration
D. Translocation

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 14
What is the primary function of the mitochondria in eukaryotic cells?
A. Protein synthesis
B. Cell signaling
Correct C. Energy production
D. Lipid synthesis

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 15
What is the process by which cells divide to produce two daughter cells?
Correct A. Mitosis
B. Meiosis
C. Binary fission
D. Endoreduplication

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 16
What is the primary function of the ribosomes in eukaryotic cells?
Correct A. Protein synthesis
B. Cell signaling
C. Lipid synthesis
D. Protein modification

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 17
What is the process by which plants transport water and minerals from the roots to the leaves?
A. Transpiration
Correct B. Translocation
C. Respiration
D. Photosynthesis

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 18
What is the primary function of the lysosomes in eukaryotic cells?
A. Protein synthesis
B. Cell signaling
C. Lipid synthesis
Correct D. Protein degradation

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 19
What is the process by which cells become specialized to perform specific functions?
Correct A. Differentiation
B. Mitosis
C. Meiosis
D. Endoreduplication

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 20
What is the primary function of the centrioles in eukaryotic cells?
A. Protein synthesis
B. Cell signaling
Correct C. Cilia formation
D. Flagella formation

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 21
What is the process by which cells divide to produce four daughter cells?
A. Mitosis
Correct B. Meiosis
C. Binary fission
D. Endoreduplication

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 22
The process of meiosis in a diploid organism results in the production of four haploid daughter cells. Which of the following is a characteristic of these daughter cells?
A. They have the same number of chromosomes as the parent cell
Correct B. They have half the number of chromosomes as the parent cell
C. They have a mix of maternal and paternal chromosomes
D. They have a different number of chromosomes than the parent cell

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 23
A cell is placed in a hypotonic solution. What will happen to the cell?
A. The cell will shrink
Correct B. The cell will swell
C. The cell will remain the same size
D. The cell will burst

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 24
The human eye has a lens that changes shape to focus on objects at different dis\tances. What is the name of this process?
Correct A. Accommodation
B. Convergence
C. Divergence
D. Focu\sing

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 25
The process of cellular respiration involves the breakdown of glu\cose to produce energy. Which of the following is a byproduct of this process?
A. Carbon dioxide
B. Water
C. Oxygen
Correct D. All of the above

Correct Answer: D

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