POST UTME VERITAS UNIVERSITY 2019 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A 50 mL sample of a solution containing 0.1 M glu\cose is diluted to 100 mL. What is the resulting concentration of the solution?
A. 0.05 M
B. 0.1 M
C. 0.15 M
D. 0.2 M
Question 2
The process by which plants convert light energy into chemical energy is known as
A. Photosynthesis
B. Respiration
C. Transpiration
D. Osmosis
Question 3
A plant with the genotype 'Tt' is crossed with a plant with the genotype 'tt'. What is the probability that the offspring will have the genotype 'TT'?
A. 0.25
B. 0.5
C. 0.75
D. 0.9
Question 4
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. 0.64
B. 0.36
C. 0.16
D. 0.84
Question 5
In the context of excretion, what is the primary function of the kidneys?
A. To filter waste from the blood
B. To regulate blood pressure
C. To maintain electrolyte balance
D. To produce hormones
Question 6
A 50-year-old man has a serum creatinine level of 1.5 mg/dL. If the normal range is 0.6-1.2 mg/dL, what is the percentage of the patient's serum creatinine level that is above the normal range?
A. 10%
B. 15%
C. 20%
D. 25%
Question 7
In a typical terrestrial e\cosystem, what is the primary function of the symbiotic relationship between mycorrhizal fungi and plant roots?
A. To obtain nutrients from the soil
B. To provide structural support to the plant
C. To facilitate gas exchange between the plant and atmosphere
D. To regulate water balance in the plant
Question 8
A 2.5 L flask contains a mixture of O2 and N2 at 25°C and 1 atm. If 1.5 L of N2 is removed, what is the partial pressure of O2 in the flask?
A. 0.7 atm
B. 0.5 atm
C. 0.3 atm
D. 0.2 atm
Question 9
A 2.5 L flask contains a mixture of O2 and N2 at 25°C and 1 atm. If 1.5 L of N2 is removed, what is the partial pressure of O2 in the flask?
A. 0.25 atm
B. 0.5 atm
C. 0.75 atm
D. 1 atm
Question 10
The human body's \endocrine system is responsible for
A. regulating body temperature
B. controlling blood pressure
C. producing hormones that stimulate growth and development
D. digesting food
Question 11
The process of mitosis in eukaryotic cells involves
A. the replication of DNA and the separation of chromosomes
B. the synthesis of proteins and the breakdown of organelles
C. the fusion of gametes and the formation of a zygote
D. the differentiation of cells and the formation of tissues
Question 12
In the process of photosynthesis, what is the byproduct of the light-dep\endent reactions?
A. ATP
B. NADPH
C. Oxygen
D. Glu\cose
Question 13
The human body's skeletal system is responsible for
A. supporting the body's structure
B. regulating body temperature
C. controlling blood pressure
D. digesting food
Question 14
The process of osmoregulation in plants involves
A. the regulation of water and ion balance
B. the synthesis of proteins and the breakdown of organelles
C. the fusion of gametes and the formation of a zygote
D. the differentiation of cells and the formation of tissues
Question 15
A 50-year-old woman has a 10-year history of hypertension. Her blood pressure is 180/100 mmHg. What is the most likely cause of her hypertension?
A. Renal artery stenosis
B. Aortic coarctation
C. Pheochromocytoma
D. Primary aldosteronism

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