Chloroplasts because that is the substance that gives leaves its green colour and also helps in photosynthesis
In order to make the proton gradient, protons are pumped across the mitochondrial membrane at several points in the electron transport chain. However, that proton gradient is only used to make ATP by the ATP synthase, which is technically separate from the electron transport chain.
78% is nitrogen, 21% is oxygen, 1% is other.
Your answer for q is 0.65!
