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 water is recycled when glucose is formed.
The hydrogen in water 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.
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
The correct answer is: The hydrogen in water is recycled when glucose is formed.
During cellular respiration, plants break down glucose and other organic compounds to produce energy. This process involves a series of chemical reactions that release energy and produce waste products. The hydrogen in water is an important component in this process.
In the initial stage of cellular respiration, called glycolysis, glucose is broken down into two molecules of pyruvate. During this step, water molecules are used to help break down the glucose molecule. The hydrogen atoms from these water molecules are then transferred to carrier molecules, such as NADH, which can transport them to the next stage of cellular respiration.
The next stage, the citric acid cycle, takes place in the mitochondria. Here, the two molecules of pyruvate are further broken down, releasing more hydrogen atoms. These hydrogen atoms are again transferred to carrier molecules. The final stage, known as the electron transport chain, occurs in the inner mitochondrial membrane. Here, the hydrogen atoms from the carrier molecules are used to produce energy in the form of ATP.
Throughout the entire process of cellular respiration, the hydrogen atoms from water are continuously recycled and used to generate ATP and other energy-rich molecules. This recycling allows plants to efficiently utilize the hydrogen available in water for energy production.