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Multiple Choice
Which of the following is a true statement about the role of chlorophyll in photosynthesis?
A
Chlorophyll is a catalyst that speeds up the breakdown of glucose.
B
Chlorophyll absorbs light energy and converts it directly into glucose.
C
Chlorophyll absorbs light energy and initiates the conversion of carbon dioxide and water into glucose.
D
Chlorophyll is responsible for the transport of electrons during cellular respiration.
Verified step by step guidance
1
Understand the role of chlorophyll in photosynthesis: Chlorophyll is a pigment found in the chloroplasts of plant cells, and it plays a crucial role in capturing light energy from the sun.
Recognize the process of photosynthesis: Photosynthesis is the process by which plants convert light energy into chemical energy, specifically glucose, using carbon dioxide and water.
Identify the function of chlorophyll in the light-dependent reactions: Chlorophyll absorbs light energy, which excites electrons and initiates the electron transport chain, leading to the production of ATP and NADPH.
Clarify the misconception about glucose production: Chlorophyll does not directly convert light energy into glucose. Instead, it facilitates the initial steps that lead to the synthesis of glucose in the Calvin cycle, which occurs after the light-dependent reactions.
Differentiate between photosynthesis and cellular respiration: Chlorophyll is not involved in cellular respiration, which is a separate process where glucose is broken down to produce energy in the form of ATP.