To identify the statements that demonstrate the role of photosynthesis in the cycling of matter into and out of organisms, let's evaluate each option:
A. Photosynthesis uses carbon dioxide from the atmosphere.
- This statement is true. Photosynthesis absorbs carbon dioxide (CO2) from the atmosphere as a key component of the process.
B. Photosynthesis releases carbon dioxide into the atmosphere.
- This statement is false. Photosynthesis does not release carbon dioxide; instead, it consumes it. The process produces oxygen (O2) as a byproduct.
C. Photosynthesis returns carbon to the ground as plants die and decompose.
- This statement is somewhat misleading in this context because while decomposition involves the return of carbon to the soil, this is more about the processes following photosynthesis, not directly the role of photosynthesis itself.
D. Photosynthesis stores energy in the form of glucose (C6H12O6).
- This statement is true. Photosynthesis converts light energy into chemical energy stored in glucose through the process of converting CO2 and water into glucose and oxygen.
E. Photosynthesis provides glucose (C6H12O6) to herbivores in the environment.
- This statement is true as well. Photosynthesis creates glucose, which is consumed by herbivores and thus is part of the cycling of matter.
Based on this evaluation, the statements demonstrating the role of photosynthesis in the cycling of matter into and out of organisms are:
- A. Photosynthesis uses carbon dioxide from the atmosphere.
- D. Photosynthesis stores energy in the form of glucose (C6H12O6).
- E. Photosynthesis provides glucose (C6H12O6) to herbivores in the environment.
1 answer