Question

2. a) Describe the ways that energy is converted between forms during the light

reactions. (2 points) Hint: Think about the processes that take place in
photosystems I and II.

Answer 1

After absorbing sunlight which then excites electrons, the excited electrons run along the electron transport chain from Photosystem II to Photosystem I where it can receive more sunlight. From there, the excited electron can create the energy carrier molecules ATP and NADPH by way of the ATP synthase.

Answer 2

Photosystems is a process in which solar energy is converted into chemical which occurs in protein complex. There are two photosystems i. e. photosystem l and photosystem ll. Photosystem occurs outside surface of thylakoid membrane of chloroplast. In photosystem l, solar energy is converted into ATP and NADPH. Photosystem occurs inside surface of thylakoid membrane of chloroplast. In photosystem ll, hydrogen is extracted from water molecule which is used in the formation of ATP by using ATP synthase enzyme.