Multiple Choice
Which two reactants are required for the process of cellular respiration?
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8. Respiration
Introduction to Cellular Respiration
Multiple Choice
Which of the following correctly identifies the main reactants and products of cellular respiration?
A
Reactants: glucose and oxygen; Products: carbon dioxide, water, and ATP
B
Reactants: ATP and oxygen; Products: glucose and water
C
Reactants: carbon dioxide and water; Products: glucose and oxygen
D
Reactants: glucose and carbon dioxide; Products: oxygen and water
Verified step by step guidance1
Step 1: Begin by understanding the process of cellular respiration. Cellular respiration is a metabolic pathway that converts glucose into usable energy (ATP) in the presence of oxygen. It occurs in three main stages: glycolysis, the citric acid cycle, and oxidative phosphorylation.
Step 2: Identify the reactants of cellular respiration. The process starts with glucose (C₆H₁₂O₆) and oxygen (O₂) as the primary reactants. Glucose is broken down to release energy, and oxygen is used as the final electron acceptor in the electron transport chain.
Step 3: Determine the products of cellular respiration. The main products are carbon dioxide (CO₂), water (H₂O), and ATP (adenosine triphosphate). Carbon dioxide is released as a waste product during the citric acid cycle, water is formed during oxidative phosphorylation, and ATP is the energy currency produced.
Step 4: Compare the given options to the reactants and products identified. The correct option should list glucose and oxygen as reactants and carbon dioxide, water, and ATP as products.
Step 5: Eliminate incorrect options by analyzing their reactants and products. For example, options listing ATP as a reactant or glucose as a product are incorrect because they do not align with the biochemical process of cellular respiration.
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