POST UTME PAN-ATLANTIC UNIVERSITY 2022 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
The xylem tissue in plants is responsible for transporting water and minerals from the roots to the leaves. Which of the following is a characteristic of xylem tissue?
A. It is composed of dead cells.
B. It is responsible for transporting sugars from the leaves to the roots.
C. It is composed of living cells.
D. It is responsible for transporting water and minerals from the roots to the leaves.
Question 2
A patient is diagnosed with a bacterial infection. The bacteria are gram-positive and catalase-negative. Which of the following antibiotics would be most effective against this infection?
A. Penicillin
B. Erythromycin
C. Ciprofloxacin
D. Vancomycin
Question 3
In the context of evolutionary theory, what is the primary mechanism by which genetic variation is introduced into a population?
A. Mutation
B. Gene flow
C. Genetic drift
D. Natural selection
Question 4
The classification of living things into kingdoms is based on?
A. Cell structure
B. DNA structure
C. Metabolism
D. Cellular organization
Question 5
A plant with the genotype 'Aa' produces 50% red flowers and 50% white flowers. What is the genotype of the parent plant?
A. AA
B. Aa
C. aa
D. A
Question 6
In the context of gas exchange, what is the primary function of the alveolar-capillary membrane?
A. To regulate the amount of oxygen and carbon dioxide exchanged between the lungs and the bloodstream
B. To facilitate the diffusion of oxygen and carbon dioxide across the membrane
C. To maintain the pH balance of the blood
D. To regulate the amount of water vapor exchanged between the lungs and the bloodstream
Question 7
In a tropical rainforest, the nutrient cycle is primarily driven by the decomposition of organic matter by which of the following organisms?
A. Fungi
B. Bacteria
C. Protozoa
D. Rotifers
Question 8
The process of evolution is driven by?
A. Natural selection
B. Genetic drift
C. Mutation
D. Gene flow
Question 9
In the context of blood transport systems, what is the primary function of the erythrocyte membrane?
A. To regulate the movement of ions and nutrients across the membrane
B. To maintain the structural integrity of the cell
C. To facilitate the exchange of gases between the blood and tissues
D. To synthesize and store hemoglobin
Question 10
The microorganism responsible for cau\sing tuberculosis is?
A. Bacillus anthracis
B. Mycobacterium tuberculosis
C. Escherichia coli
D. Staphylococcus aureus
Question 11
The sense organ responsible for detecting changes in sound intensity is the?
A. Eye
B. Ear
C. Nose
D. Mouth
Question 12
A 2.5 L flask contains 1.5 mol of an ideal gas at 27°C. If 1.0 mol of gas is added to the flask at the same temperature, what is the new pressure?
A. 2.5 atm
B. 3.0 atm
C. 4.0 atm
D. 5.0 atm
Question 13
A plant has a root system that is adapted to absorb water from a dry soil. What is the term for this adaptation?
A. Taproot
B. Fibrous root
C. Adventitious root
D. Deep root
Question 14
The process by which an organism grows and develops from a \single cell is called?
A. Mitosis
B. Meiosis
C. Photosynthesis
D. Growth and Development
Question 15
The process by which plants convert light energy into chemical energy is known as?
A. Photosynthesis
B. Respiration
C. Transpiration
D. Evaporation

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