POST UTME AFE BABALOLA UNIVERSITY 2025 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
What is the term for the process by which plants convert light energy into chemical energy?
A. Photosynthesis
B. Respiration
C. Transpiration
D. Osmosis
Question 2
The process of meiosis involves the replication of DNA and the separation of chromosomes. Which of the following stages of meiosis is responsible for the cros\sing over of genetic material?
A. Prophase I
B. Metaphase I
C. Anaphase I
D. Pachytene
Question 3
A diagram of the xylem tissue in a plant stem is shown below. Identify the structure labeled 'X' in the diagram.
A. Tracheid
B. Xylem vessel
C. Parenchyma cell
D. Phloem fiber
Question 4
The hormone insulin is responsible for regulating blood glu\cose levels. Which of the following is a consequence of insulin deficiency?
A. Increased blood glu\cose levels
B. Decreased blood glu\cose levels
C. Increased blood pressure
D. Decreased blood pressure
Question 5
In a photosynthetic reaction, the equation is \( 6CO_2 + 6H_2O + light energy \rightarrow C_6H_{12}O_6 + 6O_2 \). What is the byproduct of this reaction?
A. Oxygen
B. Carbon dioxide
C. Water
D. Glu\cose
Question 6
In the context of asexual reproduction, what is the primary advantage of budding in yeast?
A. It allows for the production of multiple offspring
B. It increases the genetic diversity of the population
C. It is a rapid method of reproduction
D. It allows for the production of offspring with unique characteristics
Question 7
The process of mitosis involves the replication of DNA and the separation of chromosomes. Which of the following stages of mitosis is responsible for the separation of sister chromatids?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Question 8
The process of reproduction involves the production of offspring. Which of the following types of reproduction involves the fusion of gametes?
A. Mitosis
B. Meiosis
C. Binary fission
D. Fertilization
Question 9
The process of excretion involves the removal of waste products from the body. Which of the following organs is responsible for filtering waste from the blood?
A. Kidneys
B. Liver
C. Lungs
D. Skin
Question 10
A plant cell contains a large central vacuole that is responsible for storing water and nutrients. What is the primary function of the tonoplast in this process?
A. Regulation of water uptake
B. Maintenance of turgor pressure
C. Control of nutrient transport
D. Production of digestive enzymes
Question 11
A species of plant has a growth rate of \( \frac{dN}{dt} = rN\( 1 - \frac{N}{K} \ \) ), where ( r ) is the intrinsic growth rate and ( K ) is the carrying capacity. What is the value of ( N ) when the population size is at its maximum?
A. 0
B. K
C. r
D. 1
Question 12
In a cell undergoing mitosis, what is the stage where the chromosomes are condensed and attached to the spindle fibers?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Question 13
In the context of hormonal coordination, what is the primary function of the hypothalamus?
A. Regulation of body temperature
B. Control of hunger and thirst
C. Stimulation of the pituitary gland
D. Regulation of blood pressure
Question 14
A geneticist is studying the inheri\tance of a trait in a population. Which of the following is an example of a genetic variation?
A. A change in the DNA sequence of a gene
B. A change in the expression of a gene
C. A change in the number of copies of a gene
D. A change in the structure of a protein
Question 15
A diagram of a human respiratory system is shown below. What is the function of the trachea?
A. To transport oxygen to the lungs
B. To transport carbon dioxide from the lungs
C. To regulate the temperature of the body
D. To synthesize proteins

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