NEET BIOLOGY

PLANT PHYSIOLOGY

PHOTOSYNTHESIS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The light independent reactions of photosynthesis happen where?
A
stroma of chloroplast
B
mitochondrial matrix
C
stem
D
thylakoid membrane
Explanation: 

Detailed explanation-1: -The light-independent reactions of photosynthesis take place within the stroma. It contains enzymes that work with ATP and NADPH to “fix” carbon from carbon dioxide into molecules that can be used to build glucose. The chloroplast’s own genetic material (separate from that of the cell) is also stored in the stroma.

Detailed explanation-2: -Once the light reactions have occurred, the light-independent or “dark” reactions take place in the chloroplast stroma.

Detailed explanation-3: -(i) Light reactions occur in grana thylakoids whereas dark reactions occur in stroma of chloroplasts.

Detailed explanation-4: -Dark reaction occurs in stroma of the chloroplast. Q. Photosynthesis involves a series of reactions. The light-dependent reactions occur in the presence of light while the light-independent reactions can occur in the light or dark.

Detailed explanation-5: -Stroma is the spot where the light-independent reaction occurs. The light-independent reaction is also recognized as the Calvin-Benson cycle, Calvin Cycle, and dark reaction. The name dark reaction creates confusion as the name shows the reaction takes place in darkness but it’s not true.

There is 1 question to complete.