The light reactions of Photosynthesis?

Question

The light reactions of photosynthesis

a. include splitting a water molecule into protons, electrons, and oxygen.

b. convert green visible light to chemical energy in the calvin cycle.

c. convert visible light to chlorophyll during the chemical reactions of thylakoids.

d. oxidize chloroplasm to release electrons needed in a reduction chain

Answer 1

The light reactions of photosynthesis invlolve splitting water so that the H+ protons and the electrons are used to make components of the carbon (dark) reactions that come later. Oxygen is released as a byproduct.  So A is right.

B is not right because the calvin cycle is part of the carbon (dark) reactions and does not need light to operate and the plant does not use green light.  We see the colors of light that are reflected, so if plants are green, what color is being reflected?  What colors are being used?

C is not right because light is not used in the production of chlorophyll.

D. is just wrong.