POST UTME BABCOCK UNIVERSITY 2020 Biology | Objective

Are you preparing for POST UTME BABCOCK UNIVERSITY exams? Reviewing past questions is one of the most effective ways to guarantee a high score. This practice hub features authentic 2020 Biology (Objective) questions designed to simulate the real exam environment.

Practice these randomly selected questions to test your readiness.

Question 1
In the context of hormonal coordination, what is the primary function of the hypothalamic-pituitary-adrenal (HPA) axis?
A. Regulation of body temperature
B. Stimulation of the immune system
Correct C. Maintenance of homeostasis through the release of hormones
D. Inhibition of the reproductive system

Correct Answer: C

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Question 2
A diagram of the human eye is shown below. What is the primary function of the optic nerve?
Correct A. Transmission of visual information to the brain
B. Regulation of pupil size
C. Maintenance of eye pressure
D. Production of tears

Correct Answer: A

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Question 3
A diagram of the human kidney is shown below. What is the primary function of the nephrons?
A. Regulation of blood pressure
B. Maintenance of electrolyte balance
Correct C. Removal of waste products from the blood
D. Production of hormones

Correct Answer: C

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Question 4
A diagram of the human heart is shown below. What is the primary function of the atrioventricular (AV) node?
A. Regulation of heart rate
B. Maintenance of blood pressure
Correct C. Transmission of electrical signals from the atria to the ventricles
D. Production of hormones

Correct Answer: C

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Question 5
A diagram of the human brain is shown below. What is the primary function of the cerebral cortex?
A. Regulation of body temperature
B. Maintenance of homeostasis
Correct C. Proces\sing and integration of sensory information
D. Production of hormones

Correct Answer: C

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Question 6
In a population of 1000 individuals, 50% are heterozygous for a particular gene, 30% are homozygous dominant, and 20% are homozygous recessive. What is the frequency of the recessive allele?
Correct A. 0.15
B. 0.20
C. 0.25
D. 0.30

Correct Answer: A

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Question 7
A researcher is studying the effect of pH on the growth of E. coli. The researcher measures the growth of the bacteria in different pH levels and plots the data on a graph. Which of the following best describes the relationship between pH and bacterial growth?
A. Inversely proportional
Correct B. Directly proportional
C. No relationship
D. U-shaped

Correct Answer: B

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Question 8
A patient has a fever of 39°C and is experiencing chills. The patient's white blood cell count is 15,000 cells/μL. What is the most likely diagnosis?
Correct A. Bacterial pneumonia
B. Viral pneumonia
C. Leukemia
D. App\endicitis

Correct Answer: A

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Question 9
A researcher is studying the effect of temperature on the rate of chemical reactions. The researcher measures the rate of reaction at different temperatures and plots the data on a graph. Which of the following best describes the relationship between temperature and reaction rate?
A. Inversely proportional
Correct B. Directly proportional
C. No relationship
D. U-shaped

Correct Answer: B

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Question 10
A patient has a history of kidney disease and is experiencing symptoms of fatigue, weakness, and swelling. The patient's blood urea nitrogen (BUN) level is 40 mg/dL. What is the most likely diagnosis?
Correct A. Chronic kidney disease
B. Acute kidney injury
C. Diabetes
D. Hypertension

Correct Answer: A

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Question 11
In a eukaryotic cell, the process of cell division that results in the production of four daughter cells is called
Correct A. Mitosis
B. Meiosis
C. Binary Fission
D. Endosymbiosis

Correct Answer: A

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Question 12
The process by which plants convert light energy into chemical energy is called
A. Respiration
Correct B. Photosynthesis
C. Transpiration
D. Osmosis

Correct Answer: B

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Question 13
The type of tissue that connects, supports, and binds other tissues together is called
A. Epithelial Tissue
Correct B. Connective Tissue
C. Muscle Tissue
D. Nervous Tissue

Correct Answer: B

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Question 14
The process by which an organism becomes dep\endent on a particular subs\tance is called
A. Addiction
B. Tolerance
C. Withdrawal
Correct D. Dep\endence

Correct Answer: D

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Question 15
The type of microorganism that causes disease in humans is called
A. Bacteria
Correct B. Virus
C. Fungus
D. Protozoa

Correct Answer: B

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Question 16
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 17
The process by which a cell becomes specialized to perform a specific function is known as:
Correct A. Differentiation
B. Mitosis
C. Meiosis
D. Endoreduplication

Correct Answer: A

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Question 18
The system of organs that is responsible for the digestion and absorption of nutrients is known as:
A. Circulatory System
B. Respiratory System
Correct C. Digestive System
D. Nervous System

Correct Answer: C

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Question 19
The process by which an organism becomes better adapted to its environment is known as:
Correct A. Natural Selection
B. Genetic Drift
C. Gene Flow
D. Mutation

Correct Answer: A

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Question 20
The type of tissue that is composed of nerve cells is known as:
A. Epithelial Tissue
B. Connective Tissue
C. Muscle Tissue
Correct D. Nervous Tissue

Correct Answer: D

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Question 21
In a population of 1000 individuals, 70% are heterozygous for the gene controlling the production of a particular enzyme. If 20% of the population are homozygous recessive, what is the frequency of the recessive allele?
Correct A. 0.15
B. 0.20
C. 0.25
D. 0.30

Correct Answer: A

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Question 22
A 20-year-old man presents with a 2-year history of progressive weakness and wasting of the muscles of the face, arms, and legs. His speech is slurred, and he has difficulty swallowing. Which of the following is the most likely diagnosis?
Correct A. Amyotrophic Lateral Sclerosis (ALS)
B. Muscular Dystrophy
C. Myasthenia Gravis
D. Guillain-Barré Syndrome

Correct Answer: A

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Question 23
A 35-year-old woman presents with a 5-year history of progressive shortness of breath, fatigue, and swelling of the legs. Her chest X-ray shows cardiomegaly. Which of the following is the most likely diagnosis?
A. Cor Pulmonale
Correct B. Congestive Heart Failure
C. Cardiomyopathy
D. Pulmonary Embolism

Correct Answer: B

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Question 24
A 25-year-old man presents with a 2-year history of progressive weakness and wasting of the muscles of the face, arms, and legs. His speech is slurred, and he has difficulty swallowing. Which of the following is the most likely diagnosis?
Correct A. Amyotrophic Lateral Sclerosis (ALS)
B. Muscular Dystrophy
C. Myasthenia Gravis
D. Guillain-Barré Syndrome

Correct Answer: A

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Question 25
A 30-year-old woman presents with a 3-year history of progressive shortness of breath, fatigue, and swelling of the legs. Her chest X-ray shows cardiomegaly. Which of the following is the most likely diagnosis?
A. Cor Pulmonale
Correct B. Congestive Heart Failure
C. Cardiomyopathy
D. Pulmonary Embolism

Correct Answer: B

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