POST UTME IGBINEDION UNIVERSITY 2023 Biology | Objective

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Question 1 View Details
In a eukaryotic cell, what is the primary function of the Golgi apparatus?
A. Protein synthesis
B. Cell signaling
C. Lipid modification
Correct D. Protein transport

Correct Answer: D

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Question 2 View Details
What is the term for the movement of water from the roots to the leaves of a plant through the xylem?
Correct A. Transpiration
B. Translocation
C. Osmosis
D. Diffusion

Correct Answer: A

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Question 3 View Details
A diagram of a plant cell is shown below. Identify the part labeled A.
Correct A. Nucleus
B. Mitochondria
C. Chloroplast
D. Vacuole

Correct Answer: A

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Question 4 View Details
What is the term for the process by which an organism's genetic information is passed from one generation to the next?
A. Mutation
B. Genetic drift
C. Natural selection
Correct D. Heritability

Correct Answer: D

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Question 5 View Details
A diagram of a human cell is shown below. Identify the part labeled B.
A. Mitochondria
Correct B. Endoplasmic reticulum
C. Golgi apparatus
D. Lysosome

Correct Answer: B

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Question 6 View Details
In asexual reproduction, what is the primary mechanism by which genetic variation is introduced?
A. Mutation
Correct B. Genetic recombination
C. Gene duplication
D. Gene deletion

Correct Answer: B

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Question 7 View Details
What is the primary function of the Golgi apparatus in eukaryotic cells?
A. Protein synthesis
Correct B. Protein modification
C. Protein transport
D. Protein degradation

Correct Answer: B

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Question 8 View Details
In the context of excretion, what is the primary mechanism by which the kidneys regulate the concentration of ions in the blood?
A. Osmosis
Correct B. Active transport
C. Passive transport
D. Diffusion

Correct Answer: B

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Question 9 View Details
What is the primary function of the xylem in plants?
A. Transport of sugars
Correct B. Transport of water
C. Transport of ions
D. Transport of gases

Correct Answer: B

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Question 10 View Details
In the context of cell division, what is the primary function of the spindle fibers?
A. Separation of chromosomes
B. Attachment of chromosomes to the spindle fibers
Correct C. Movement of chromosomes to the poles
D. Separation of sister chromatids

Correct Answer: C

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Question 11 View Details
In the context of eco\logy, what is the primary function of a keystone species in a biotic community?
A. To occupy a unique eco\logical niche
B. To regulate the population of other species
Correct C. To maintain the structure of the community
D. To facilitate the process of succession

Correct Answer: C

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Question 12 View Details
A plant cell undergoes mitosis to produce two daughter cells. What is the primary purpose of this process?
A. To increase the number of chromosomes
B. To produce gametes
C. To repair damaged DNA
Correct D. To produce identical daughter cells

Correct Answer: D

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Question 13 View Details
A diagram of the human eye is shown below. What is the primary function of the lens?
Correct A. To focus light on the retina
B. To regulate the amount of light entering the eye
C. To produce tears
D. To maintain the shape of the eye

Correct Answer: A

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Question 14 View Details
A diagram of the human circulatory system is shown below. What is the primary function of the heart?
Correct A. To pump blood throughout the body
B. To regulate the amount of blood in the body
C. To produce red blood cells
D. To maintain the shape of the heart

Correct Answer: A

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Question 15 View Details
A diagram of the human respiratory system is shown below. What is the primary function of the lungs?
Correct A. To exchange oxygen and carbon dioxide
B. To regulate the amount of air in the lungs
C. To produce mucus
D. To maintain the shape of the lungs

Correct Answer: A

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Question 16 View Details
In a population of 1000 bacteria, 80% are resis\tant to antibiotic X. If 200 bacteria are randomly selected for treatment, what is the probability that at least 150 will be resis\tant to antibiotic X?
Correct A. 0.95
B. 0.90
C. 0.85
D. 0.80

Correct Answer: A

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Question 17 View Details
A 2.5 kg block is attached to a horizontal, massless spring with a force cons\tant of 100 N/m. The block is displaced by 0.25 m from its equilibrium position and released from rest. Assuming the motion is simple harmonic, calculate the maximum speed of the block.
A. 1.25 m/s
Correct B. 2.50 m/s
C. 3.75 m/s
D. 5.00 m/s

Correct Answer: B

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Question 18 View Details
A solution contains 0.5 M NaCl and 0.2 M KNO3. If 10 mL of 1 M HCl is added to 50 mL of the solution, what is the concentration of Cl- ions in the resulting solution?
A. 0.05 M
Correct B. 0.10 M
C. 0.15 M
D. 0.20 M

Correct Answer: B

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Question 19 View Details
A 50-year-old woman has a 10-year history of hypertension. She has a family history of cardiovascular disease and is a non-smoker. Her blood pressure is 160/90 mmHg. What is the most appropriate treatment for this patient?
Correct A. Li\sinopril 10 mg daily
B. Amlodipine 5 mg daily
C. Hydrochlorothiazide 25 mg daily
D. Atenolol 50 mg daily

Correct Answer: A

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Question 20 View Details
A 25-year-old man has a 5-year history of asthma. He has a family history of allergies and is a non-smoker. His peak expiratory flow rate is 200 L/min. What is the most appropriate treatment for this patient?
A. Salbutamol 2 puffs 4 times daily
Correct B. Fluticasone 250 mcg 2 puffs daily
C. Montelukast 10 mg daily
D. Ipratropium bromide 2 puffs 4 times daily

Correct Answer: B

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Question 21 View Details
A 30-year-old woman has a 10-year history of type 2 diabetes. She has a family history of cardiovascular disease and is a non-smoker. Her HbA1c is 8.5%. What is the most appropriate treatment for this patient?
Correct A. Metformin 500 mg 2 times daily
B. Pioglitazone 30 mg daily
C. Sulfonylurea 2 mg 2 times daily
D. Insulin 10 units 2 times daily

Correct Answer: A

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Question 22 View Details
A 40-year-old man has a 10-year history of hypertension. He has a family history of cardiovascular disease and is a non-smoker. His blood pressure is 180/100 mmHg. What is the most appropriate treatment for this patient?
Correct A. Li\sinopril 20 mg daily
B. Amlodipine 10 mg daily
C. Hydrochlorothiazide 50 mg daily
D. Atenolol 100 mg daily

Correct Answer: A

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Question 23 View Details
A 50-year-old woman has a 10-year history of type 2 diabetes. She has a family history of cardiovascular disease and is a non-smoker. Her HbA1c is 9.5%. What is the most appropriate treatment for this patient?
Correct A. Metformin 1000 mg 2 times daily
B. Pioglitazone 45 mg daily
C. Sulfonylurea 4 mg 2 times daily
D. Insulin 20 units 2 times daily

Correct Answer: A

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Question 24 View Details
In a eukaryotic cell, the process of cell division that results in the production of four daughter cells is known as
Correct A. Mitosis
B. Meiosis
C. Binary Fission
D. Endoreduplication

Correct Answer: A

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Question 25 View Details
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

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