The electron transport chains of the light reactions
A)are located in the stroma.
B)shuttle electrons from photosystem II to photosystem I.
C)provide energy for the citric acid cycle.
D)are found on the plasma membrane of mesophyll cells.

Question

Quizplus · Accepted Answer

The electron transport chains of the light reactions shuttle electrons from photosystem II to photosystem I. This process generates a proton gradient across the thylakoid membrane, which is ultimately used to produce ATP through chemiosmosis. The electron transport chains do not provide energy for the citric acid cycle and are not located in the stroma or plasma membrane of mesophyll cells.

The Electron Transport Chains of the Light Reactions