POST UTME CALEB UNIVERSITY 2019 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
In the context of respiration, what is the primary function of the alveoli in the lungs?
A. Gas Exchange
B. Oxygen Storage
C. Carbon Dioxide Storage
D. Nitrogen Storage
Question 2
In a closed e\cosystem, the rate of respiration in a population of rabbits is 0.5 g/h. If the population size is 1000 individuals, and the average mass of a rabbit is 2 kg, what is the total rate of respiration in the population?
A. 1000 g/h
B. 5000 g/h
C. 20000 g/h
D. 50000 g/h
Question 3
A researcher is studying the excretory system of a particular organism. Which of the following organs is responsible for filtering waste products from the blood?
A. Kidney
B. Liver
C. Pancreas
D. Spleen
Question 4
A bio\logist is studying the process of photosynthesis in a plant. What is the primary function of the stomata?
A. To regulate water loss
B. To regulate gas exchange
C. To regulate temperature
D. To regulate nutrient uptake
Question 5
In the process of cellular respiration, what is the primary function of the mitochondria?
A. Production of ATP and NADPH
B. Production of glu\cose and oxygen
C. Regulation of stomatal opening
D. Storage of water and minerals
Question 6
A 50-year-old man has been experiencing symptoms of kidney failure for the past 5 years. His blood urea nitrogen (BUN) level is 60 mg/dL, and his serum creatinine level is 3.5 mg/dL. What is the most likely cause of his kidney failure?
A. Diabetes mellitus
B. Hypertension
C. Chronic glomerulonephritis
D. Polycystic kidney disease
Question 7
A patient is experiencing symptoms of a hormonal imbalance. Which of the following hormones is most likely to be involved in this condition?
A. Insulin
B. Growth Hormone
C. Thyroid-Stimulating Hormone
D. Adrenaline
Question 8
In a population of 1000 individuals, 70% are diploid, 20% are triploid, and 10% are tetraploid. If the average number of gametes produced by a diploid individual is 10^6, and the average number of gametes produced by a triploid individual is 10^5, what is the average number of gametes produced by the entire population?
A. 10^6
B. 10^5
C. 2*10^5
D. 3*10^5
Question 9
A diagram of a plant cell is shown below. Identify the part labeled 'A'?
A. Cell Wall
B. Nucleus
C. Mitochondria
D. Chloroplast
Question 10
A 40-year-old man is diagnosed with hypertension. His blood pressure is 180/100 mmHg. What is the mean arterial pressure (MAP) in mmHg?
A. 140 mmHg
B. 160 mmHg
C. 180 mmHg
D. 200 mmHg
Question 11
A researcher is studying the structure of the human heart. Which part of the heart is responsible for pumping blood to the lungs?
A. Right atrium
B. Right ventricle
C. Left atrium
D. Left ventricle
Question 12
What is the primary function of the Golgi apparatus in a eukaryotic cell?
A. Production of proteins and lipids
B. Storage of water and minerals
C. Regulation of stomatal opening
D. Transport of sugars and amino acids
Question 13
A cell undergoing mitosis has a total of 46 chromosomes. How many chromosomes will each daughter cell have after mitosis?
A. 23
B. 46
C. 92
D. 184
Question 14
In a photosynthetic pathway, which of the following is the primary function of the enzyme RuBisCO?
A. Fixation of CO2
B. Reduction of CO2
C. Oxidation of CO2
D. Decarboxylation of CO2
Question 15
A diagram of the human nervous system is shown below. Which part of the nervous system is responsible for transmitting signals from sensory receptors to the brain?
A. Cerebrum
B. Cerebellum
C. Sensory Nerve
D. Motor Nerve

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