B they are <span>used for the process of gene transfer</span>
<u><em>-Describe the electron transport chain. What part of the cells does hit reaction take place in?
</em></u>
The electron transport chain is A group of compounds that pass electron from one to another via redox reactions coupled with the transfer of proton across a membrane to create a proton gradient that drives ATP synthesis. The electron transport chain occurs in the inner membrane of the mitochondria.
<u><em>-What molecule stores the energy that is generated during cellular respiration?
</em></u>
Cells create energy by breaking down the ATP molecules. Thus, cellular respiration is the utilization of oxygen for the synthesis of ATP. Glucose is broken down to supply energy for cellular respiration.
Answer:
neither
Explanation:
because humans are the ones that make energy available for cell activity
<span>respiratory circulatory digestive</span>
