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Multiple Choice
Which of the following is NOT produced during the process of cellular respiration?
A
Water ($\mathrm{H_2O}$)
B
Adenosine triphosphate (ATP)
C
Carbon dioxide ($\mathrm{CO_2}$)
D
Glucose ($\mathrm{C_6H_{12}O_6}$)
Verified step by step guidance
1
Step 1: Begin by understanding the process of cellular respiration. Cellular respiration is a metabolic pathway that converts glucose ($\mathrm{C_6H_{12}O_6}$) into energy in the form of ATP, with byproducts such as water ($\mathrm{H_2O}$) and carbon dioxide ($\mathrm{CO_2}$).
Step 2: Recall the main stages of cellular respiration: glycolysis, the citric acid cycle (Krebs cycle), and oxidative phosphorylation. Glucose ($\mathrm{C_6H_{12}O_6}$) is consumed during glycolysis, not produced.
Step 3: Identify the products of cellular respiration. The process generates ATP as the primary energy molecule, water ($\mathrm{H_2O}$) as a result of oxygen reduction, and carbon dioxide ($\mathrm{CO_2}$) as a waste product from the breakdown of glucose.
Step 4: Compare the options provided in the question. Water ($\mathrm{H_2O}$), ATP, and carbon dioxide ($\mathrm{CO_2}$) are all products of cellular respiration, while glucose ($\mathrm{C_6H_{12}O_6}$) is a reactant consumed during the process.
Step 5: Conclude that glucose ($\mathrm{C_6H_{12}O_6}$) is NOT produced during cellular respiration, making it the correct answer to the question.