Multiple Choice
Which process in cellular respiration produces the greatest amount of ATP?
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8. Respiration
Introduction to Cellular Respiration
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Which of the following lists the main reactants required for cellular respiration?
A
Glucose and carbon dioxide (\(\mathrm{C_6H_{12}O_6}\) and \(\mathrm{CO_2}\))
B
Carbon dioxide and water (\(\mathrm{CO_2}\) and \(\mathrm{H_2O}\))
C
Oxygen and ATP (\(\mathrm{O_2}\) and ATP)
D
Glucose and oxygen (\(\mathrm{C_6H_{12}O_6}\) and \(\mathrm{O_2}\))
Verified step by step guidance1
Step 1: Understand 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, using oxygen (\(\mathrm{O_2}\)) as the final electron acceptor.
Step 2: Identify the main reactants involved in cellular respiration. The process begins with glucose (\(\mathrm{C_6H_{12}O_6}\)), which is broken down during glycolysis, and oxygen (\(\mathrm{O_2}\)), which is used in the electron transport chain.
Step 3: Recall the chemical equation for cellular respiration: \(\mathrm{C_6H_{12}O_6 + 6O_2 \rightarrow 6CO_2 + 6H_2O + Energy (ATP)}\). This equation shows that glucose and oxygen are the primary reactants.
Step 4: Eliminate incorrect options. Carbon dioxide (\(\mathrm{CO_2}\)) and water (\(\mathrm{H_2O}\)) are products, not reactants. ATP is the energy output, not a reactant.
Step 5: Confirm the correct answer. The main reactants required for cellular respiration are glucose (\(\mathrm{C_6H_{12}O_6}\)) and oxygen (\(\mathrm{O_2}\)).
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