Question

In photosynthesis, water undergoes ______ while carbon dioxide undergoes ________

a. oxidation .... reduction
b. reduction .... oxidation
c. no change ..... oxidation
d. none of the above

Answer 1

a,
oxidation is when a molecule loses electrons.
in this case, water is losing an electron and CO_2 is gaining an electron, which then makes it an energy rich sugar molecule