Question

Light reaction in stromal lamellae of the chloroplast results in the formation of

• A. NADPH${}_2$
• B. ATP + NADPH${}_2$
• C. ATP
• D. O${}_2$

Answer 1

Answer: (C)

ATP

The photosystem-I is present in the stroma lamellae and the photosystem-II is present in the grana. The photosystem-I is involved in both types of photophosphorylation. The cyclic photosphosrylation occurs in the stroma lamellae. Only ATP is formed during the transfer of electrons. There is no production of NADPH2.

So, the correct answer is option C.