POST UTME AFE BABALOLA UNIVERSITY 2024 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
The following graph represents the growth of a population over time. What is the carrying capacity of the population?
A. 100
B. 200
C. 300
D. 400
Question 2
The process by which plants transport water and minerals from the roots to the leaves is known as
A. Transpiration
B. Translocation
C. Osmosis
D. Diffusion
Question 3
In a population of Drosophila melanogaster, the frequency of the recessive allele 'a' is 0.2. If the population is in Hardy-Weinberg equilibrium, what is the frequency of the homozygous dominant genotype 'AA'?
A. 0.36
B. 0.64
C. 0.72
D. 0.80
Question 4
A kidney stone is formed in the kidney. What is the most likely cause of the stone?
A. excess calcium in the urine
B. excess oxalate in the urine
C. excess uric acid in the urine
D. excess sodium in the urine
Question 5
In a desert e\cosystem, what is the primary mechanism by which plants regulate water loss through their leaves?
A. Transpiration
B. Respiration
C. Photosynthesis
D. Osmosis
Question 6
A 5 cm long stem has a diameter of 0.5 cm. If the stem is 10 times longer than it is wide, what is its width?
A. 0.05 cm
B. 0.1 cm
C. 0.2 cm
D. 0.5 cm
Question 7
A 2.5 L flask contains 2.0 g of CO2 at 25°C. If 1.0 g of O2 is added to the flask, what is the total pressure of the mixture?
A. 1.0 atm
B. 1.5 atm
C. 2.0 atm
D. 3.0 atm
Question 8
The diagram below represents a titration setup. Identify the subs\tance being titrated.
A. Acid
B. Base
C. Solvent
D. Solute
Question 9
A 30-year-old woman has a body mass index (BMI) of 35. Which of the following is the most likely cause of her obesity?
A. Genetics
B. Lack of exercise
C. Poor diet
D. Hormonal imbalance
Question 10
The following diagram represents a phy\logenetic tree. Identify the common ancestor of species A and B.
A. Species A
B. Species B
C. Common Ancestor
D. Species C
Question 11
The following diagram represents a cross-section of the human eye. Identify the part labeled 'D' in the diagram.
A. Cornea
B. Iris
C. Retina
D. Lens
Question 12
In the context of cell division, what is the primary function of the spindle fibers?
A. To separate chromosomes during anaphase
B. To align chromosomes during prophase
C. To form the nuclear envelope during telophase
D. To condense chromosomes during prophase
Question 13
A diagram of the human respiratory system is shown below. Identify the part labeled 'A' in the diagram.
A. Trachea
B. Lungs
C. Diaphragm
D. Bronchi
Question 14
A 2.5 cm long root hair cell has a surface area of 0.05 cm^2. If the root hair cell is 10 times longer than it is wide, what is its width?
A. 0.005 cm
B. 0.01 cm
C. 0.02 cm
D. 0.05 cm
Question 15
A population of 1000 rabbits is introduced to a new island. The population grows at a rate of 20% per year. What is the population size after 5 years?
A. 1638
B. 2000
C. 2500
D. 3000

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