POST UTME IMS U 2025 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A diagram of the human digestive system is shown below. Which part of the digestive system is responsible for absorbing nutrients from food?
A. Mouth
B. Esophagus
C. Stomach
D. Small intestine
Question 2
A study on the genetic variation of a population found that the frequency of the recessive allele 'a' is 0.2. If the population is in Hardy-Weinberg equilibrium, what is the frequency of the dominant allele 'A'?
A. 0.8
B. 0.6
C. 0.4
D. 0.2
Question 3
A bio\logist is studying the structure of a plant cell. The bio\logist observes that the cell has a large central vacuole, a nucleus, and a cell wall. What is the primary function of the cell wall in a plant cell?
A. Storage of water-soluble waste products
B. Maintenance of the cell's osmotic balance
C. Support and protection of the cell
D. Regulation of cell growth
Question 4
A 1.5-L sample of a gas is collected over water at a temperature of 25°C and a pressure of 1 atm. If the vapor pressure of water at 25°C is 23.8 mmHg, what is the partial pressure of the gas?
A. 700 mmHg
B. 743.8 mmHg
C. 800 mmHg
D. 850 mmHg
Question 5
A diagram of the human eye is shown below. Which part of the eye is responsible for detecting light?
A. Cornea
B. Iris
C. Retina
D. Lens
Question 6
A diagram of a human eye is shown below. What is the function of the structure labeled 'Y'?
A. To focus light onto the retina
B. To regulate the amount of light entering the eye
C. To transmit visual signals to the brain
D. To produce tears to lubricate the eye
Question 7
A population of bacteria is growing exponentially. If the initial population is 100 and the population doubles every 2 hours, what is the population after 6 hours?
A. 1600
B. 3200
C. 6400
D. 12800
Question 8
The process of mitosis is essential for the growth and development of multicellular organisms. Which of the following stages of mitosis is characterized by the condensation of chromatin into visible chromosomes?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Question 9
The nervous system is responsible for transmitting and proces\sing information. Which of the following types of neurons is responsible for transmitting signals from sensory receptors to the central nervous system?
A. Motor neurons
B. Sensory neurons
C. Interneurons
D. Glial cells
Question 10
The process of evolution is responsible for the diversity of life on Earth. Which of the following is a mechanism of evolution that involves the movement of genes from one population to another?
A. Mutation
B. Gene flow
C. Genetic drift
D. Natural selection
Question 11
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?
A. 0.16
B. 0.24
C. 0.32
D. 0.36
Question 12
The process of mitosis is essential for the growth and development of multicellular organisms. Which of the following stages of mitosis is characterized by the separation of chromosomes into two daughter cells?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Question 13
In a eukaryotic cell, the process of mitosis is initiated by the breakdown of the nuclear envelope, which is triggered by the activation of the Δπδαλλεργερ \( anaphase-promoting complex \). What is the primary function of the Δπδαλλεργερ in this context?
A. To degrade the cohe\sin proteins holding sister chromatids together
B. To activate the kinetochore proteins that attach to microtubules
C. To phosphorylate the histone proteins that condense chromatin
D. To recruit the spindle checkpoint proteins that monitor chromosome alignment
Question 14
A diagram of a human brain is shown below. What is the function of the structure labeled 'Z'?
A. To process visual information
B. To regulate body temperature
C. To control voluntary movements
D. To store and retrieve memories
Question 15
The process of respiration is essential for the production of energy in cells. Which of the following is a byproduct of cellular respiration?
A. ATP
B. NADH
C. FADH2
D. Glu\cose

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