Question

What BEST describes the role of water molecules in the chemical reactions of photosynthesis?

Water molecules are an intermediate c. Water molecules are an input of
of photosynthesis, they absorb light photosynthesis, they split apart and
and pass the energy to chlorophyll supply electrons to chlorophyll to
make glucose
b. Water molecules are an intermediated Water molecules are an output of
of photosynthesis, they are part of the photosynthesis, they are released at
electron transport chain
the end of the electron transport chain

Answer 1

The options to this question is unclear. However, the question will be answered comprehensively.

Water molecules are an input of photosynthesis; they split apart and supply electrons to chlorophyll to make glucose.

Step-by-step explanation:

Photosynthesis is the unique process through which green plants manufacture their food (glucose). This photosynthetic process occurs in two stages viz: light dependent and light independent stages. The light dependent stage, which occurs in the thylakoid membrane of the chloroplast, involves the synthesis of NADPH and ATP.

Water molecules are reactants (inputs) of this light stage, where they are split by the energy absorbed by chlorophyll in a process called PHOTOLYSIS. Water molecules get split into hydrogen ions (proton), oxygen gas and electrons. The electrons are accepted by NADP+ while the protons are used to build a proton pump for the synthesis of ATP. Both NADPH and ATP are used in the next stage to make glucose.