POST UTME RHEMA UNIVERSITY 2019 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 2019 Biology (Objective) questions designed to simulate the real exam environment.

Practice these randomly selected questions to test your readiness.

Question 1
In a typical plant cell, what is the primary function of the vacuole?
Correct A. Storage of nutrients and waste products
B. Regulation of cell turgor pressure
C. Production of digestive enzymes
D. Maintenance of cell shape

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 2
A diagram of the human eye is shown below. Which part of the eye is responsible for detecting light?
A. Cornea
B. Iris
Correct C. Retina
D. Lens

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 3
In the process of photosynthesis, what is the byproduct of the light-dep\endent reactions?
Correct A. ATP and NADPH
B. Glu\cose and oxygen
C. Water and carbon dioxide
D. Nitrogen and phosphorus

Correct Answer: A

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. Which part of the system is responsible for transporting oxygenated blood to the body?
Correct A. Arteries
B. Veins
C. Capillaries
D. Heart

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 5
In the process of digestion, what is the primary function of the pancreas?
Correct A. Production of digestive enzymes
B. Absorption of nutrients
C. Storage of bile
D. Regulation of blood sugar levels

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 6
In a typical human cell, the process of mitosis involves the replication of DNA and the subsequent division of the cell into two daughter cells. Which of the following stages of mitosis is characterized by the condensation of chromosomes and the formation of the spindle apparatus?
Correct A. Prophase
B. Metaphase
C. Anaphase
D. Telophase

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 7
The nervous system is responsible for transmitting signals from sensory receptors to the brain, where they are interpreted and processed. Which of the following types of neurons is primarily responsible for transmitting signals from sensory receptors to the spinal cord?
Correct A. Sensory neurons
B. Motor neurons
C. Interneurons
D. Association neurons

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 8
The human eye is a complex sensory organ that is responsible for detecting light and transmitting visual information to the brain. Which of the following structures is responsible for focu\sing light onto the retina?
A. Cornea
B. Iris
Correct C. Lens
D. Retina

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 9
The human body is composed of various tissues, including epithelial, connective, muscle, and nervous tissues. Which of the following types of tissues is characterized by the presence of a basement membrane and the ability to regenerate?
Correct A. Epithelial tissue
B. Connective tissue
C. Muscle tissue
D. Nervous tissue

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 10
The human body is a complex system that is composed of various organs and systems, including the nervous, circulatory, respiratory, and digestive systems. Which of the following organs is responsible for filtering waste products from the blood?
Correct A. Kidney
B. Liver
C. Spleen
D. Pancreas

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 11
In a population of 1000 individuals, the frequency of the dominant allele is 0.6. If the population is in Hardy-Weinberg equilibrium, what is the frequency of the recessive allele?
Correct A. 0.4
B. 0.2
C. 0.8
D. 0.1

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 12
A plant cell has a vacuole that contains 0.5 M sucrose. If the cell membrane is selectively permeable and has a permeability coefficient of 2.5 x 10^-6 cm/s, what is the rate of sucrose efflux?
A. 1.25 x 10^-5 mol/s
Correct B. 2.5 x 10^-5 mol/s
C. 5.0 x 10^-5 mol/s
D. 7.5 x 10^-5 mol/s

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 13
A 10% glu\cose solution is prepared by dissolving 10 g of glu\cose in 90 g of water. What is the concentration of the solution in g/100g?
Correct A. 10 g/100g
B. 20 g/100g
C. 30 g/100g
D. 40 g/100g

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 14
A 50 mL sample of 0.1 M NaOH is titrated with 0.1 M HCl. What is the pH of the solution after the titration?
Correct A. 7
B. 8
C. 9
D. 10

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 15
A 1000 mL sample of 0.05 M CaCl2 is mixed with 500 mL of 0.1 M NaOH. What is the concentration of the resulting solution?
A. 0.05 M
B. 0.1 M
Correct C. 0.15 M
D. 0.2 M

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 16
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'?
A. 0.36
Correct B. 0.64
C. 0.48
D. 0.16

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 17
A 2.5 L flask contains 1.5 mol of an ideal gas at 27°C. If 1.0 mol of the gas is removed, what is the new pressure of the gas?
A. 1.5 atm
Correct B. 2.5 atm
C. 3.0 atm
D. 4.0 atm

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 18
A plant cell has a cell membrane with a surface area of 100 μm² and a thickness of 5 nm. If the cell membrane is made of a lipid bilayer with a density of 0.95 g/cm³, what is the mass of the cell membrane?
A. 1.0 x 10^-13 g
Correct B. 1.9 x 10^-13 g
C. 2.0 x 10^-13 g
D. 2.5 x 10^-13 g

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 19
A 50 mL sample of a 0.5 M NaOH solution is titrated with 0.5 M HCl solution. What is the pH of the solution after the titration?
A. 5
Correct B. 7
C. 9
D. 11

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 20
A 100 mL sample of a 0.2 M glu\cose solution is digested with 0.5 M HCl solution. What is the concentration of the glu\cose solution after the digestion?
A. 0.05 M
Correct B. 0.1 M
C. 0.15 M
D. 0.2 M

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 21
The nervous system is responsible for coordinating the activities of the body. Which of the following is a function of the nervous system?
A. Regulating body temperature
Correct B. Controlling voluntary movements
C. Maintaining homeostasis
D. Producing hormones

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 22
A diagram of the human eye is shown below. What is the function of the lens?
Correct A. To focus light on the retina
B. To detect light
C. To produce tears
D. To regulate body temperature

Correct Answer: A

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 23
The human body is made up of various systems, including the circulatory, respiratory, and nervous systems. Which of the following is a function of the circulatory system?
A. To produce hormones
B. To regulate body temperature
Correct C. To transport oxygen and nutrients to cells
D. To remove waste products from the body

Correct Answer: C

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 24
A diagram of the cell cycle is shown below. What is the function of the G1 phase?
A. To replicate DNA
Correct B. To prepare the cell for division
C. To synthesize proteins
D. To degrade cellular components

Correct Answer: B

Want to see the full step-by-step solution? Unlock AI Explanation & Analytics
Question 25
The human body is made up of various tissues, including epithelial, connective, and muscle tissues. Which of the following is a characteristic of epithelial tissue?
A. It is found in the dermis layer of the skin
B. It is composed of muscle cells
Correct C. It forms the lining of organs and glands
D. It is found in the bone marrow

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