POST UTME CRAWFORD UNIVERSITY 2019 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
The process of variation involves the differences in traits among individuals within a population. Which of the following is a key type of variation?
A. Genetic variation
B. Environmental variation
C. Phenotypic variation
D. Genotypic variation
Question 2
A diagram of a human cell is shown below. What is the primary function of the mitochondria?
A. Production of ATP
B. Regulation of cell growth
C. Transport of materials across the cell membrane
D. Defense against pathogens
Question 3
A diagram of a plant's xylem is shown below. What is the primary function of the xylem?
A. Transport of water and minerals
B. Transport of glu\cose and amino acids
C. Support and storage of plant cells
D. Protection of plant cells from pathogens
Question 4
A researcher is studying the effect of light on plant growth. She sets up an experiment with three identical plants, each placed in a different environment: one in direct sunlight, one in indirect sunlight, and one in complete darkness. After one week, she measures the height of each plant. What type of data is the researcher collecting?
A. Quantitative data
B. Qualitative data
C. Ordinal data
D. Nominal data
Question 5
A diagram of the human digestive system is shown below. Which of the following structures is responsible for the breakdown of proteins?
A. A
B. B
C. C
D. D
Question 6
A plant is placed in a solution containing 0.1 M glu\cose. If the plant absorbs 5 mL of the solution in 10 minutes, what is the total amount of glu\cose absorbed?
A. 0.25 mmol
B. 0.5 mmol
C. 1 mmol
D. 2 mmol
Question 7
The diagram below shows a simple e\cosystem.
A. The plant is the primary producer and the animal is the primary consumer.
B. The animal is the primary producer and the plant is the primary consumer.
C. The plant and animal are both primary producers.
D. The plant and animal are both primary consumers.
Question 8
A diagram of a human eye is shown below. Identify the part labeled 'B'.
A. Cornea
B. Iris
C. Lens
D. Retina
Question 9
In the context of genetics, what is the term for the process by which an organism's genetic information is passed from one generation to the next?
A. Mutation
B. Genetic drift
C. Natural selection
D. Heritability
Question 10
In a tropical rainforest, the primary consumers are typically small animals that feed on the primary producers. Which of the following is NOT a primary consumer in this e\cosystem?
A. Fruit bats
B. Fruit flies
C. Fruit worms
D. Fruit trees
Question 11
A cell membrane is selectively permeable because it has specific transport proteins that allow certain molecules to pass through while keeping others out. What is the primary function of these transport proteins?
A. To regulate the movement of ions and molecules across the cell membrane
B. To provide structural support to the cell membrane
C. To synthesize new molecules from raw materials
D. To store genetic information in the form of DNA
Question 12
The process of regulation involves the control of different processes to maintain homeostasis. Which of the following is a key example of regulation?
A. Thermoregulation
B. Hemostasis
C. Electrolyte balance
D. Blood pressure regulation
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. Regulation of hormone secretion
D. Maintenance of blood pressure
Question 14
The process of heredity involves the pas\sing of traits from one generation to the next. Which of the following is a key concept involved in heredity?
A. Genotype
B. Phenotype
C. Dominance
D. Recessive
Question 15
In the process of mitosis, which of the following is the stage where the chromosomes are condensed and aligned at the metaphase plate?
A. Prophase
B. Metaphase
C. Anaphase
D. Telophase

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