POST UTME COVENANT UNIVERSITY 2025 Biology | Objective
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?
Question 2
In the human body, the circulatory system is responsible for transporting oxygen and nutrients to cells and removing waste products. Which of the following organs plays a crucial role in the circulatory system?
Question 3
A plant with the genotype 'Rr' is crossed with a plant with the genotype 'RR'. What is the probability that the offspring will have the genotype 'Rr'?
Question 4
In a closed e\cosystem, what is the primary mechanism by which oxygen is removed from the atmosphere?
Question 5
The process of cellular respiration in plants involves the breakdown of glu\cose to produce
Question 6
A diagram of a plant cell is shown below. Identify the part labeled 'A'.
Question 7
A researcher studying the eco\logy of a freshwater lake observes that the water level fluctuates seasonally. What is the most likely explanation for this phenomenon?
Question 8
A plant cell is placed in a solution containing 0.1 M glu\cose. If the cell membrane is permeable to glu\cose, what will happen to the concentration of glu\cose inside the cell?
Question 9
A 30-year-old patient presents with symptoms of depression. Which of the following is the most effective treatment for this patient?
Question 10
In a tropical rainforest, the primary consumers are primarily composed of
Question 11
A population of 1000 individuals has a birth rate of 0.05 and a death rate of 0.02. What is the expected population size after 10 years?
Question 12
A plant cell has a cell wall, a large central vacuole, and a small nucleus. Which of the following is NOT a characteristic of plant cells?
Question 13
A 2.0 L sample of a gas at 25°C and 1.0 atm is collected over water. If the vapor pressure of water at 25°C is 23.8 mmHg, what is the partial pressure of the gas?
Question 14
A diagram of a plant cell is shown below. Identify the structure labeled 'A'.
Question 15
In a typical human eye, the cornea and lens work together to focus light on the retina. However, in a condition known as cataract, the lens becomes cloudy and prevents light from pas\sing through. Which of the following best describes the effect of cataract on vision?
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