Multiple Choice
Why are plants unable to grow at the bottom of deep lakes?
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9. Photosynthesis
Introduction to Photosynthesis
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Why is air circulation important for photosynthesis to function properly?
A
It prevents the accumulation of glucose in the chloroplasts.
B
It ensures a continuous supply of carbon dioxide (CO_2) to the leaves.
C
It provides water directly to the photosynthetic cells.
D
It increases the absorption of sunlight by chlorophyll.
Verified step by step guidance1
Understand the process of photosynthesis: Photosynthesis is the process by which plants convert light energy, carbon dioxide (CO₂), and water into glucose and oxygen. Carbon dioxide is a critical reactant in this process.
Recognize the role of air circulation: Air circulation ensures that fresh carbon dioxide (CO₂) is continuously supplied to the leaves, which is necessary for the Calvin cycle (the light-independent reactions of photosynthesis).
Clarify why carbon dioxide is essential: During the Calvin cycle, CO₂ is fixed into organic molecules to produce glucose. Without a steady supply of CO₂, photosynthesis cannot proceed efficiently.
Eliminate incorrect options: Air circulation does not directly prevent glucose accumulation, provide water, or increase sunlight absorption. These processes are unrelated to the role of air circulation in photosynthesis.
Conclude the importance of air circulation: Air circulation is vital because it ensures a continuous supply of CO₂ to the leaves, enabling photosynthesis to function properly.
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