POST UTME KSU 2024 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A plant with the genotype 'Tt' is crossed with a plant with the genotype 'tt'. What is the probability that the offspring will have the genotype 'TT'?
A. 0.1
B. 0.25
C. 0.5
D. 0.75
Question 2
The process of excretion in humans involves the removal of waste products from the body through the kidneys. Which of the following structures is responsible for the filtration of blood in the kidneys?
A. Glomerulus
B. Proximal Convoluted Tubule
C. Distal Convoluted Tubule
D. Collecting Duct
Question 3
What is the primary function of the sense organ known as the vestibular apparatus?
A. To detect changes in temperature
B. To detect changes in pressure
C. To detect changes in acceleration and orientation
D. To detect changes in light intensity
Question 4
A diagram of a human eye is shown below. What is the function of the structure labeled 'Y'?
A. site of vision proces\sing
B. site of light entry
C. site of image formation
D. site of eye movement
Question 5
In the process of excretion, what is the primary function of the liver?
A. To filter waste products from the blood
B. To produce bile to aid in digestion
C. To store glycogen for energy
D. To regulate the amount of water in the body
Question 6
In the xylem, what is the primary function of the tracheids?
A. Transport of water and minerals from roots to leaves
B. Production of sugars through photosynthesis
C. Storage of nutrients and water
D. Regulation of water potential
Question 7
A diagram of the human digestive system is shown below. What is the function of the part labeled 'C'?
A. To break down food into smaller molecules
B. To mix food with digestive enzymes
C. To absorb nutrients into the bloodstream
D. To store food for later use
Question 8
A patient is diagnosed with a kidney disorder that affects the kidneys' ability to filter waste products from the blood. Which of the following organs is responsible for the production of erythropoietin, a hormone that stimulates red blood cell production?
A. Liver
B. Kidneys
C. Spleen
D. Bone marrow
Question 9
A 1.0 L solution of 0.1 M HCl is mixed with a 1.0 L solution of 0.1 M NaOH. What is the pH of the resulting solution?
A. 0
B. 1
C. 2
D. 3
Question 10
In the process of osmoregulation, what is the primary function of the kidneys?
A. To regulate the amount of water in the body
B. To regulate the amount of electrolytes in the body
C. To regulate the amount of glu\cose in the blood
D. To regulate the amount of oxygen in the blood
Question 11
In a tropical rainforest e\cosystem, the presence of a large population of a specific species of tree can lead to a phenomenon known as the "edge effect". What is the primary consequence of this effect on the surrounding environment?
A. Increased biodiversity
B. Reduced soil erosion
C. Enhanced nutrient cycling
D. Decreased primary productivity
Question 12
A solution of sodium chloride (NaCl) is titrated with a solution of silver nitrate (AgNO3). The reaction is as follows: 2NaCl + AgNO3 → AgCl + 2NaNO3. If 25.0 mL of 0.100 M NaCl solution is titrated with 0.100 M AgNO3 solution, what is the number of moles of AgNO3 required to completely react with the NaCl?
A. 0.00125
B. 0.0025
C. 0.00375
D. 0.005
Question 13
A diagram of the human circulatory system is shown below. What is the function of the part labeled 'B'?
A. To pump blood throughout the body
B. To carry oxygenated blood from the lungs to the heart
C. To carry deoxygenated blood from the heart to the lungs
D. To regulate blood pressure
Question 14
A 40-year-old man presents with symptoms of respiratory disease. His FEV1/FVC ratio is 0.7. What is the most likely diagnosis?
A. Chronic obstructive pulmonary disease (COPD)
B. Asthma
C. Cystic fibrosis
D. Pulmonary embolism
Question 15
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
B. 0.64
C. 0.72
D. 0.88

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