Multiple Choice
Which process in photosynthesis begins when carbon dioxide (\(\mathrm{CO_2}\)) from the atmosphere is incorporated into organic molecules?
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9. Photosynthesis
Introduction to Photosynthesis
Multiple Choice
Which of the following processes does NOT produce carbon dioxide (\(\mathrm{CO_2}\))?
A
Fermentation in yeast
B
Combustion of glucose
C
Cellular respiration in animals
D
Photosynthesis in plants
Verified step by step guidance1
Step 1: Begin by understanding the processes listed in the problem. Each process involves chemical reactions, and we need to determine whether carbon dioxide (\(\mathrm{CO_2}\)) is produced or not.
Step 2: Analyze fermentation in yeast. During alcoholic fermentation, glucose is broken down into ethanol and carbon dioxide (\(\mathrm{CO_2}\)). This process produces \(\mathrm{CO_2}\) as a byproduct.
Step 3: Examine the combustion of glucose. Combustion is a chemical reaction where glucose reacts with oxygen to produce carbon dioxide (\(\mathrm{CO_2}\)) and water. This process also releases energy.
Step 4: Consider cellular respiration in animals. Cellular respiration involves the breakdown of glucose in the presence of oxygen to produce energy, carbon dioxide (\(\mathrm{CO_2}\)), and water. \(\mathrm{CO_2}\) is released as a waste product.
Step 5: Evaluate photosynthesis in plants. Photosynthesis is the process by which plants use sunlight, carbon dioxide (\(\mathrm{CO_2}\)), and water to produce glucose and oxygen. Instead of producing \(\mathrm{CO_2}\), photosynthesis consumes it, making this process the correct answer to the question.
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