Igcse Model Questions Vol1 2023 Biology Question 32

Practice objective / multiple choice question 32 from the 2023 Igcse Model Questions Vol1 Biology examination.

Igcse Model Questions Vol1 2023 Biology Objective / Multiple Choice Medium Difficulty
Question 32 IGCSE_MODEL_QUESTIONS_VOL1 • 2023 • BIOLOGY • objective

In a sealed container, yeast fermentation at 30 °C produces 12 mL of CO₂ in 5 minutes. Assuming the molar volume of a gas at this temperature is 24.0 L mol⁻¹, calculate: 1) the number of moles of glucose metabolised anaerobically; 2) the total number of ATP molecules that would have been produced if the same amount of glucose had been metabolised aerobically (38 ATP per glucose). Give your final answer for ATP molecules in scientific notation (two significant figures).

Answer Options

A. 1.1×10^{22} molecules
B. 4.5×10^{21} molecules
Correct Answer C. 5.7×10^{21} molecules
D. 3.2×10^{20} molecules
Correct Answer
C
Correct Option:
5.7×10^{21} molecules

About This Question

This is Igcse Model Questions Vol1 2023 Biology Question 32. It is one of the objective questions from the 2023 Igcse Model Questions Vol1 Biology examination.

Difficulty level: Medium .

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