Question

________ is the main respiratory substrate.

Answer 1

Respiratory substrates:

1. Respiratory substrates are those molecules that get oxidized during the process of respiration.
2. They are broken down into smaller molecules.
3. Carbohydrates like glucose form the primary substrate of respiration.
4. Glucose is broken down to pyruvate in glycolysis.
5. One molecule of glucose gives 38 molecules of ATP.
6. It is considered the primary respiratory substrate.

Final answer: Glucose is the main respiratory substrate.