POST UTME IMS U 2022 Biology | Objective

Practice these randomly selected questions to test your readiness.

Question 1
A 50-g sample of a subs\tance is digested and the resulting CO2 is collected over water at 20°C and 1 atm. If the volume of CO2 collected is 2.5 L, what is the percentage of carbon in the original subs\tance?
A. 40%
B. 30%
C. 20%
D. 10%
Question 2
A study on the genetic variation of a population found that the frequency of the recessive allele is 0.2. If the population size is 1000, what is the expected number of homozygous recessive individuals?
A. 200
B. 400
C. 600
D. 800
Question 3
Which of the following sense organs is responsible for detecting changes in blood pressure?
A. Carotid \sinus
B. Aortic arch
C. Baroreceptors in the heart
D. Baroreceptors in the lungs
Question 4
A 2.0 L flask contains 1.0 M HCl at 25°C. If 1.0 g of NaOH is added to the flask, what is the concentration of HCl after the reaction is complete?
A. 0.5 M
B. 1.0 M
C. 1.5 M
D. 2.0 M
Question 5
A 28-year-old female patient is diagnosed with a type of neuro\logical disorder that affects the brain. The patient's brain MRI shows a 2 cm x 3 cm lesion in the left temporal lobe. What is the patient's estimated risk of seizures?
A. 10
B. 20
C. 30
D. 40
Question 6
In a food chain, the primary producer is a type of algae that undergoes photosynthesis. If the algae produces 1000 units of glu\cose per day and the energy is transferred to the next trophic level with an efficiency of 20%, what is the energy available to the primary consumer?
A. 200
B. 400
C. 600
D. 800
Question 7
A 30-year-old woman has a body mass index (BMI) of 25. If she gains 10 kg, what is her new BMI?
A. 25
B. 28
C. 30
D. 32
Question 8
A cell is placed in a solution with a concentration of 0.1 M glu\cose. If the cell is permeable to glu\cose, what is the direction of net glu\cose movement?
A. Into the cell
B. Out of the cell
C. No net movement
D. Dep\ends on the cell membrane
Question 9
In the process of cellular respiration, what is the net result of the citric acid cycle?
A. Production of ATP and NADH
B. Production of FADH2 and ATP
C. Production of ATP and FADH2
D. Production of NADH and FADH2
Question 10
A plant cell has a vacuole that contains 0.5 M sucrose. If the cell membrane is selectively permeable and has a permeability coefficient of 1.2 x 10^-6 cm/s for sucrose, what is the rate of sucrose efflux?
A. 2.4 x 10^-6 mol/cm^2/s
B. 1.2 x 10^-6 mol/cm^2/s
C. 6.0 x 10^-7 mol/cm^2/s
D. 3.0 x 10^-7 mol/cm^2/s
Question 11
The process by which plants convert light energy into chemical energy is called?
A. Respiration
B. Photosynthesis
C. Transpiration
D. Translocation
Question 12
Which of the following microorganisms is responsible for cau\sing tuberculosis?
A. Mycobacterium tuberculosis
B. Mycobacterium leprae
C. Mycobacterium avium
D. Mycobacterium bovis
Question 13
The xylem is a type of vascular tissue found in plants that 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 composed of living cells
C. It is responsible for transporting sugars
D. It is responsible for transporting amino acids
Question 14
In a population of 1000 individuals, 200 are infected with a disease that has a 50% mortality rate. If 20% of the infected individuals are asymptomatic, what is the expected number of deaths due to the disease?
A. 80
B. 120
C. 160
D. 200
Question 15
The xylem is responsible for transporting?
A. Water and minerals
B. Sugars and amino acids
C. Oxygen and carbon dioxide
D. Hormones and waste products

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