POST UTME JOSEPH AYO BABALOLA UNIVERSITY 2022 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
In the context of osmoregulation, what is the primary function of the kidneys in maintaining the balance of electrolytes and water in the body?
A. To regulate blood pressure
B. To remove waste products from the blood
C. To maintain the balance of electrolytes and water
D. To regulate body temperature
Question 2
Which of the following sense organs is responsible for detecting changes in sound waves?
A. Eye
B. Ear
C. Nose
D. Tongue
Question 3
A diagram of a human eye is shown below. Identify the part labeled 'B'.
A. Cornea
B. Iris
C. Retina
D. Lens
Question 4
The process of evolution involves the change in the genetic makeup of a population over time. Which of the following mechanisms is responsible for the increase in the frequency of a beneficial trait in a population?
A. Natural selection
B. Genetic drift
C. Gene flow
D. Mutation
Question 5
The diagram below shows a simple circuit with a battery, a resistor, and a switch. If the switch is closed, what will be the direction of the current flow in the circuit?
A. From the battery to the resistor and then to the switch.
B. From the battery to the switch and then to the resistor.
C. From the resistor to the battery and then to the switch.
D. From the switch to the resistor and then to the battery.
Question 6
A diagram of a human brain is shown below. Identify the part labeled 'C'.
A. Cerebrum
B. Cerebellum
C. Brainstem
D. Spinal Cord
Question 7
A diagram of a plant's xylem and phloem is shown below. Which of the following statements is true about the xylem?
A. It transports water and minerals from the roots to the leaves.
B. It transports sugars and other organic compounds from the leaves to the rest of the plant.
C. It is responsible for the transport of gases between the roots and the leaves.
D. It is responsible for the transport of nutrients from the soil to the roots.
Question 8
The Hardy-Weinberg principle states that a population will be in equilibrium if the following conditions are met. Which of the following conditions is NOT necessary for a population to be in equilibrium?
A. No mutation
B. No gene flow
C. Random mating
D. Cons\tant population size
Question 9
The process of meiosis in a diploid cell results in the production of four haploid daughter cells. Which of the following stages of meiosis is responsible for the reduction in chromosome number?
A. Prophase I
B. Metaphase I
C. Anaphase I
D. Telophase II
Question 10
The process of osmoregulation in plants involves the movement of water across the plasma membrane. Which of the following statements is correct regarding the mechanism of water transport in plant cells?
A. Water enters the cell through the process of \endocytosis.
B. Water exits the cell through the process of exocytosis.
C. Water enters the cell through the process of facilitated diffusion.
D. Water exits the cell through the process of active transport.
Question 11
A diagram of the human eye is shown below. What is the function of the part labeled 'A'?
A. To focus light on the retina
B. To detect light and color
C. To regulate the amount of light entering the eye
D. To produce tears
Question 12
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. Association neurons
Question 13
In the context of classification of living things, which of the following kingdoms is characterized by the presence of cell walls made of chitin?
A. Fungi
B. Protista
C. Bacteria
D. Animalia
Question 14
A population of bacteria is growing exponentially. If the initial population size is 100 bacteria and the population size doubles every 2 hours, what will be the population size after 6 hours?
A. 1600
B. 3200
C. 6400
D. 12800
Question 15
In the human body, what is the term for the process by which the body maintains a stable internal environment despite changes in the external environment?
A. Homeostasis
B. Regulation
C. Adaptation
D. Acclimatization

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