Multiple Choice
In the context of introduction to photosynthesis, the carbon that plants use to build sugars during photosynthesis comes primarily from which source?
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9. Photosynthesis
Introduction to Photosynthesis
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In the relationship between photosynthesis and cellular respiration, which set of four substances is recycled (produced by one process and used by the other)?
A
Water, oxygen, starch, and enzymes
B
Chlorophyll, sunlight, oxygen, and glucose
C
Nitrogen gas, ammonia, nitrate, and ATP
D
Carbon dioxide, water, oxygen, and glucose
Verified step by step guidance1
Understand the processes involved: Photosynthesis and cellular respiration are complementary biological processes where the products of one serve as the reactants for the other.
Identify the main substances involved in photosynthesis: Photosynthesis uses carbon dioxide and water to produce glucose and oxygen, using sunlight as energy.
Identify the main substances involved in cellular respiration: Cellular respiration uses glucose and oxygen to produce carbon dioxide, water, and energy (ATP).
Recognize the recycling pattern: Carbon dioxide and water are used in photosynthesis and produced in cellular respiration, while oxygen and glucose are produced in photosynthesis and used in cellular respiration.
Conclude that the set of substances recycled between these two processes is carbon dioxide, water, oxygen, and glucose.
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