POST UTME COAL CITY UNIVERSITY 2024 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A bio\logist is studying the classification of living organisms. Which of the following is a characteristic of the domain Archaea?
A. They are prokaryotic cells
B. They are eukaryotic cells
C. They are found in extreme environments
D. They are multicellular organisms
Question 2
A geneticist is studying the inheri\tance of a specific trait. Which of the following is a likely outcome of a cross between two heterozygous individuals?
A. All offspring will be homozygous dominant
B. All offspring will be homozygous recessive
C. All offspring will be heterozygous
D. The offspring will be a mixture of homozygous and heterozygous individuals
Question 3
A fossil record shows a gradual change in the morpho\logy of a species over time. What is the primary evidence for this change?
A. Phy\logenetic analysis
B. Fossil succession
C. Geo\logical dating
D. Comparative anatomy
Question 4
A phytoplankton community in a freshwater lake is dominated by cyanobacteria. Which of the following is a likely consequence of this dominance?
A. Increased water clarity
B. Decreased dissolved oxygen levels
C. Increased primary production
D. Reduced nutrient cycling
Question 5
In a population of Drosophila melanogaster, the frequency of the recessive allele 'b' for black body color is 0.2. If the population is in Hardy-Weinberg equilibrium, what is the frequency of the homozygous dominant genotype 'B'B'?
A. 0.2
B. 0.4
C. 0.6
D. 0.8
Question 6
A diagram of the human digestive system is shown below. What is the function of the part labeled 'B'?
A. To break down proteins into amino acids.
B. To absorb nutrients into the bloodstream.
C. To store waste until it is eliminated.
D. To produce digestive enzymes.
Question 7
In the context of photosynthesis, what is the role of the enzyme RuBisCO in the Calvin cycle?
A. It is a key enzyme in the light-dep\endent reactions.
B. It is responsible for the fixation of CO2 into organic compounds.
C. It is involved in the electron transport chain.
D. It is a component of the thylakoid membrane.
Question 8
The human body has a complex system of organs and tissues that work together to maintain homeostasis.
A. True
B. False
C. The human body has a simple system of organs and tissues
D. The human body does not have a system of organs and tissues
Question 9
A 5 L flask contains 2.5 mol of an ideal gas at 20°C. If the gas is heated to 50°C, what is the new volume of the gas?
A. 3.0 L
B. 4.0 L
C. 5.0 L
D. 6.0 L
Question 10
In a desert e\cosystem, a cactus plant has adapted to store water in its stems. This adaptation is an example of which type of osmoregulatory mechanism?
A. Osmosis
B. Osmoregulation
C. Water storage
D. Transpiration
Question 11
A researcher is studying the respiration of a yeast cell. Which of the following is a key enzyme involved in the glycolytic pathway?
A. Hexokinase
B. Pyruvate kinase
C. Phosphofructokinase
D. Enolase
Question 12
In the context of classification of living things, what is the term for the process of grouping organisms based on their physical characteristics?
A. Phy\logeny
B. Taxonomy
C. Phenetics
D. Genetics
Question 13
The process of digestion in the human body \begins in the mouth and continues in the stomach and small intestine.
A. True
B. False
C. The process of digestion \begins in the stomach and continues in the small intestine
D. The process of digestion \begins in the small intestine and continues in the stomach
Question 14
A 50-year-old man presents to the primary care physician with symptoms of fatigue and weakness. He has a history of hypertension and is taking li\sinopril. Which of the following is the most likely cause of his symptoms?
A. Renal failure
B. Heart failure
C. Hypothyroidism
D. Anemia
Question 15
In a eukaryotic cell, the process of photosynthesis occurs in the mitochondria.
A. True
B. False
C. Photosynthesis occurs in the chloroplasts
D. Photosynthesis occurs in the cytoplasm

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