How do plants recycle hydrogen during cellular respiration?
1. The hydrogen in glucose is recycled water
2. The hydrogen and water is recycled as glucose.
3. The hydrogen in hydrogen gas is recycled as glucose.
4. The hydrogen and glucose is recycled as hydrogen gas.
1 answer
The correct answer is 1. The hydrogen in glucose that is broken down during cellular respiration is combined with oxygen to release energy, and one of the byproducts of this process is water. The water produced in cellular respiration is released into the surrounding environment, and can be absorbed by the plant's roots and used to synthesize new glucose molecules through the process of photosynthesis. So, the plant recycles the hydrogen from the water produced during respiration to make new glucose molecules, allowing it to continue the cycle of cellular respiration and photosynthesis.