Multiple Choice
Which of the following is a product of cellular respiration?
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8. Respiration
Introduction to Cellular Respiration
Multiple Choice
Which of the following are the main reactants in the process of cellular respiration?
A
Carbon dioxide and water (\(\mathrm{CO_2}\) and \(\mathrm{H_2O}\))
B
Glucose and oxygen (\(\mathrm{C_6H_{12}O_6}\) and \(\mathrm{O_2}\))
C
Glucose and carbon dioxide (\(\mathrm{C_6H_{12}O_6}\) and \(\mathrm{CO_2}\))
D
Oxygen and ATP (\(\mathrm{O_2}\) and ATP)
Verified step by step guidance1
Step 1: Understand the process of cellular respiration. Cellular respiration is a metabolic pathway that converts glucose into energy (ATP) using oxygen. It occurs in three main stages: glycolysis, the citric acid cycle, and oxidative phosphorylation.
Step 2: Identify the main reactants in cellular respiration. Reactants are substances that are consumed during a chemical reaction. In cellular respiration, glucose (\(\mathrm{C_6H_{12}O_6}\)) and oxygen (\(\mathrm{O_2}\)) are the primary reactants.
Step 3: Recall the chemical equation for cellular respiration: \(\mathrm{C_6H_{12}O_6} + 6\mathrm{O_2} \rightarrow 6\mathrm{CO_2} + 6\mathrm{H_2O} + \text{Energy (ATP)}\). This equation shows that glucose and oxygen are consumed to produce carbon dioxide, water, and energy.
Step 4: Eliminate incorrect options based on the chemical equation. Carbon dioxide (\(\mathrm{CO_2}\)) and water (\(\mathrm{H_2O}\)) are products, not reactants. ATP is also a product, not a reactant. Glucose and carbon dioxide (\(\mathrm{C_6H_{12}O_6}\) and \(\mathrm{CO_2}\)) do not react together in this process.
Step 5: Conclude that the correct answer is glucose (\(\mathrm{C_6H_{12}O_6}\)) and oxygen (\(\mathrm{O_2}\)), as they are the main reactants in cellular respiration.
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