POST UTME MADONNA UNIVERSITY 2017 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
In the context of sense organs, what is the primary function of the retina?
A. To detect light and transmit signals to the brain
B. To regulate blood pressure and heart rate
C. To filter out harmful subs\tances from the blood
D. To produce tears and maintain eye health
Question 2
In the process of cellular respiration, which of the following is the primary function of the mitochondria?
A. To synthesize proteins
B. To generate ATP through oxidative phosphorylation
C. To store genetic information
D. To regulate cell growth
Question 3
The process of mitosis results in the production of daughter cells that are genetically identical to the parent cell. Which of the following stages of mitosis is responsible for the separation of chromosomes?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase
Question 4
A diagram of a human circulatory system is shown below. Which part of the diagram is responsible for the regulation of blood pressure?
A. Heart
B. Arteries
C. Capillaries
D. Veins
Question 5
In asexual reproduction, what is the primary mechanism by which genetic variation is introduced?
A. Mutation
B. Gene flow
C. Genetic drift
D. Genetic recombination
Question 6
A diagram of a human respiratory system is shown below. Which part of the diagram is responsible for the exchange of oxygen and carbon dioxide?
A. Lungs
B. Trachea
C. Diaphragm
D. Bronchi
Question 7
The process of photosynthesis in plants involves the conversion of light energy into chemical energy in the form of glu\cose. Which of the following is a byproduct of photosynthesis?
A. Oxygen
B. Carbon dioxide
C. Water
D. Nitrogen
Question 8
The human immune system is responsible for protecting the body against pathogens and other foreign subs\tances. Which of the following is an example of a type of immune cell that plays a key role in the immune response?
A. Macrophage
B. Neutrophil
C. T cell
D. B cell
Question 9
A patient is diagnosed with a bacterial infection. The patient's blood sample is sent to a laboratory for analysis. The laboratory technician performs a Gram stain on the sample and observes that the bacteria are Gram-positive. What can be concluded about the type of bacteria present?
A. The bacteria are Staphylococcus aureus
B. The bacteria are Streptococcus pneumoniae
C. The bacteria are Escherichia coli
D. The bacteria are Klebsiella pneumoniae
Question 10
The process of heredity involves the transmission of traits from parents to offspring. Which of the following is a type of hereditary variation?
A. Genetic drift.
B. Mutation.
C. Gene flow.
D. Natural selection.
Question 11
The growth and development of organisms involve the coordinated action of various hormones. Which of the following is a type of hormone involved in plant growth?
A. Auxin.
B. Gibberellin.
C. Cytokinin.
D. Ethylene.
Question 12
A diagram of the xylem and phloem is shown below. What is the primary function of the xylem?
A. To transport water and minerals from the roots to the leaves
B. To transport sugars and other organic compounds from the leaves to the rest of the plant
C. To regulate water loss through transpiration
D. To support the structure of the plant
Question 13
A patient is experiencing difficulty with blood clotting. Which of the following transport systems is most likely responsible for this symptom?
A. Blood system
B. Xylem system
C. Phloem system
D. Circulatory system
Question 14
The concept of symbiotic relationships in bio\logy refers to the close and often long-term interactions between different species. Which of the following is an example of a mutualistic symbiotic relationship?
A. Predation
B. Commensalism
C. Mutualism
D. Parasitism
Question 15
In the human body, the nervous system and the \endocrine system work together to regulate various bodily functions. Which of the following is an example of a hormone that is produced by the pituitary gland?
A. Adrenocorticotropic hormone (ACTH)
B. Follicle-stimulating hormone (FSH)
C. Luteinizing hormone (LH)
D. Thyroid-stimulating hormone (TSH)

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