POST UTME ESUT 2025 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
The process by which a cell divides into two daughter cells, each with a different number of chromosomes, is called?
A. Meiosis
B. Mitosis
C. Binary Fission
D. Endospore Formation
Question 2
A certain species of bird has a mean wingspan of 1.5 meters with a s\tandard deviation of 0.1 meters. If a random sample of 20 individuals is taken from this population, what is the probability that the sample mean wingspan will be less than 1.3 meters?
A. 0.25
B. 0.5
C. 0.75
D. 0.9
Question 3
In a photosynthetic organism, the light-dep\endent reactions occur in the thylakoid membranes of the chloroplasts. Which of the following is a product of the light-dep\endent reactions?
A. ATP
B. NADPH
C. O2
D. H2O
Question 4
The process by which a cell divides into two daughter cells, each with a different number of chromosomes, is called?
A. Meiosis
B. Mitosis
C. Binary Fission
D. Endospore Formation
Question 5
In a desert e\cosystem, the primary consumers are primarily insects that feed on the abundant cactus plants. Which of the following is a characteristic of these primary consumers?
A. They have a high rate of reproduction to quickly colonize the desert.
B. They have a specialized digestive system to break down cellulose.
C. They have a large body size to intimidate predators.
D. They have a symbiotic relationship with other organisms.
Question 6
In a photosynthetic pathway, which of the following electron carriers is responsible for the transfer of electrons from plastocyanin to the reaction center of photosystem II?
A. Ferredoxin
B. Plastocyanin
C. Cytochrome b6f complex
D. P700
Question 7
What is the primary mechanism by which the kidneys regulate blood pH?
A. Excretion of excess hydrogen ions
B. Reabsorption of bicarbonate ions
C. Excretion of excess bicarbonate ions
D. Reabsorption of hydrogen ions
Question 8
The process of diffusion of water molecules across a semipermeable membrane is known as
A. active transport
B. passive transport
C. osmosis
D. \endosmosis
Question 9
In a forest e\cosystem, the decomposers are primarily bacteria that break down dead organic matter. Which of the following is a characteristic of these decomposers?
A. They have a high rate of reproduction to quickly colonize the forest.
B. They have a specialized digestive system to break down cellulose.
C. They have a large body size to intimidate competitors.
D. They have a symbiotic relationship with other organisms.
Question 10
The process of transport in eukaryotic cells involves the movement of subs\tances across the plasma membrane. Which of the following types of transport is characterized by the movement of subs\tances against their concentration gradient?
A. Passive transport
B. Active transport
C. Osmosis
D. Diffusion
Question 11
The process by which a cell divides into two daughter cells is called?
A. Mitosis
B. Meiosis
C. Binary Fission
D. Endospore Formation
Question 12
A person is experiencing visual impairment due to a defect in the retina. Which of the following is a characteristic of the person's visual system?
A. Decreased visual acuity
B. Increased visual acuity
C. Decreased visual field
D. Increased visual field
Question 13
In a tropical rainforest e\cosystem, the primary consumers are primarily herbivores that feed on the abundant plant life. Which of the following is a characteristic of these primary consumers?
A. They have a high metabolic rate to quickly digest their food.
B. They have a low metabolic rate to conserve energy.
C. They have a specialized digestive system to break down cellulose.
D. They have a large body size to intimidate predators.
Question 14
A cell undergoing mitosis has a nuclear envelope that is
A. dissolved
B. intact
C. perforated
D. reformed
Question 15
The diagram below shows the structure of a human eye. Identify the part labeled 'B'.
A. Cornea
B. Iris
C. Retina
D. Lens

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