How do plants recycle carbon during photosynthesis?(1 point)
Responses
The carbon in oxygen molecules is recycled during photosynthesis.
The carbon in oxygen molecules is recycled during photosynthesis.
The carbon in water is recycled during photosynthesis.
The carbon in water is recycled during photosynthesis.
The carbon in carbon dioxide is recycled during photosynthesis.
The carbon in carbon dioxide is recycled during photosynthesis.
The carbon in glucose is recycled during photosynthesis.
The carbon in carbon dioxide is recycled during photosynthesis. During photosynthesis, plants take in carbon dioxide from the air and convert it into glucose, a process that releases oxygen as a byproduct. This allows plants to recycle carbon and use it to grow and produce energy.
How do plants recycle hydrogen during cellular respiration?(1 point)
Responses
The hydrogen in hydrogen gas is recycled when glucose is formed.
The hydrogen in hydrogen gas is recycled when glucose is formed.
The hydrogen in glucose is recycled when hydrogen gas is formed.
The hydrogen in glucose is recycled when hydrogen gas is formed.
The hydrogen in glucose is recycled when water is formed.
The hydrogen in glucose is recycled when water is formed.
The hydrogen in water is recycled when glucose is formed.
How many molecules of water are recycled when one molecule of glucose is created during photosynthesis?(1 point)
Responses
6
6
1
1
12
12
3
6. During photosynthesis, one molecule of glucose is created from 6 molecules of water. This process involves the splitting of water molecules into hydrogen and oxygen, which are then used to form glucose.
Scientists used radioactive hydrogen to make water. They grew plants using the radioactive water. What happened to the radioactive hydrogen during photosynthesis?(1 point)
Responses
It was recycled when glucose was formed.
It was recycled when glucose was formed.
It was recycled when light energy was formed.
It was recycled when light energy was formed.
It was recycled when hydrogen gas was formed.
It was recycled when hydrogen gas was formed.
It was recycled when water was formed.