POST UTME RHEMA UNIVERSITY 2017 Biology | Objective

Are you preparing for POST UTME RHEMA UNIVERSITY 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, which of the following is a key mechanism used by the kidney to regulate the concentration of ions in the blood?
Correct A. Reabsorption of ions from the filtrate
B. Secretion of ions into the filtrate
C. Regulation of ion channels in the renal tubules
D. Excretion of excess ions in the urine

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 2
A patient is diagnosed with a bacterial infection caused by a gram-positive bacterium. Which of the following antibiotics would be most effective in treating this infection?
A. Penicillin
B. Ciprofloxacin
Correct C. Vancomycin
D. Amoxicillin

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 3
In a photosynthetic plant cell, which of the following organelles is responsible for the light-dep\endent reactions?
Correct A. Chloroplast
B. Mitochondria
C. Endoplasmic reticulum
D. Golgi apparatus

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 4
A cell is in the G2 phase of the cell cycle. Which of the following events is most likely to occur?
A. DNA replication
Correct B. Mitosis
C. Interphase
D. G1 phase

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 5
A diagram of a plant cell is shown below. Which of the following organelles is responsible for the breakdown of proteins?
A. Mitochondria
B. Chloroplast
C. Endoplasmic reticulum
Correct D. Lysosome

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 6
In a population of Drosophila melanogaster, the frequency of the recessive allele 'r' is 0.2. If the population is in Hardy-Weinberg equilibrium, what is the frequency of the homozygous dominant genotype?
Correct A. 0.36
B. 0.64
C. 0.16
D. 0.04

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 7
A plant cell has a cell wall, a large central vacuole, and a small nucleus. Which of the following organelles is NOT found in this cell?
A. Mitochondria
B. Chloroplast
Correct C. Endoplasmic Reticulum
D. Lysosome

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 8
A solution of 0.1 M glu\cose is diluted to 0.01 M. What is the new volume of the solution?
A. 10 mL
Correct B. 100 mL
C. 1000 mL
D. 10 L

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 9
A neuron has a resting potential of -70 mV. If it is depolarized by 10 mV, what is the new membrane potential?
Correct A. -60 mV
B. -80 mV
C. -90 mV
D. -100 mV

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 10
A plant grows in a pot with a mixture of soil and sand. If the plant grows 10 cm in 5 days, what is the rate of growth?
A. 2 cm/day
Correct B. 5 cm/day
C. 10 cm/day
D. 20 cm/day

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 11
In the xylem, what is the primary mechanism for the transport of water and minerals from the roots to the leaves?
Correct A. Transpiration pull
B. Root pressure
C. Capillary action
D. Osmosis

Correct Answer: A

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. Lipid synthesis
Correct C. Modification and packaging of proteins and lipids
D. Cell signaling

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 13
In the context of evolutionary theory, what is the term for the process by which a population becomes reproductively isolated from other populations?
Correct A. Speciation
B. Adaptation
C. Mutation
D. Genetic drift

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 14
What is the term for the process by which an organism's genetic makeup changes over time due to environmental pressures?
Correct A. Natural selection
B. Genetic drift
C. Mutation
D. Gene flow

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 15
In the context of eco\logy, what is the term for the process by which an organism's population size changes over time due to birth and death rates?
Correct A. Population growth
B. Population decline
C. Carrying capacity
D. Environmental resis\tance

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 16
In a diploid cell, what is the total number of alleles for a particular gene if the individual is homozygous dominant for the gene?
Correct A. 2
B. 4
C. 6
D. 8

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 17
What is the primary function of the Golgi apparatus in a cell?
A. Protein synthesis
B. Cell signaling
Correct C. Lipid modification
D. Protein degradation

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. Identify the part labeled 'X'.
A. Vacuole
B. Mitochondrion
C. Nucleus
Correct D. Plastid

Correct Answer: D

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 19
A 2.5-liter solution of 0.5 M NaCl is prepared. What is the total number of moles of NaCl in the solution?
A. 0.5 mol
Correct B. 1.25 mol
C. 2.5 mol
D. 5 mol

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 20
A diagram of a simple harmonic motion is shown below. Identify the type of motion.
Correct A. Simple harmonic motion
B. Damped harmonic motion
C. Forced harmonic motion
D. Free harmonic motion

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 21
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'?
Correct A. 0.36
B. 0.64
C. 0.72
D. 0.84

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 22
A diagram of a plant cell is shown below. Identify the part labeled 'B'.
A. Mitochondria
Correct B. Nucleus
C. Cell Wall
D. Chloroplast

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 23
A population of 1000 individuals is divided into two groups: one group has 800 individuals and the other group has 200 individuals. If the population is in Hardy-Weinberg equilibrium, what is the frequency of the recessive allele 'a'?
A. 0.08
Correct B. 0.16
C. 0.24
D. 0.32

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 24
A diagram of a circuit is shown below. Identify the part labeled 'A'.
Correct A. Resistor
B. Battery
C. Switch
D. Wire

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 25
A population of 1000 individuals is divided into two groups: one group has 600 individuals and the other group has 400 individuals. If the population is in Hardy-Weinberg equilibrium, what is the frequency of the dominant allele 'A'?
Correct A. 0.64
B. 0.72
C. 0.80
D. 0.88

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