What is the product of the electron transport chain of photosynthesis?

Answer 1

ATP, the energy carrier for all cellular processes.

To put it simply: in the electron transport chain the movement of electrons is used to pump hydrogen atoms (#H^+#) to one side of the thylakoid membrane (inside chloroplasts of plants).

At the end of the transport chain the #H^+# atoms flow from high concentration to low concentration which fuels the enzyme ATP synthase. This way ATP is made, which is the energy carrier that is used in all cellular processes.

In this image the electron transport chain starts on the left. Electrons are transported from one protein complex to another. This creates the hydrogen gradient. On the right the sysnthesis of ATP is shown, the end product of this process.

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Answer 2
Vivian Aronson
NADPH (nicotinamide adenine dinucleotide phosphate) and ATP (adenosine triphosphate) are the end products of the electron transport chain in photosynthesis.
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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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