Question

What are the two steps of photosynthesis, and where do they occur?

A) Light-dependent reactions in the chloroplasts, Calvin cycle in the mitochondria
B) Light-dependent reactions in the mitochondria, Calvin cycle in the chloroplasts
C) Light-dependent reactions in the mitochondria, Calvin cycle in the cytoplasm
D) Light-dependent reactions in the chloroplasts, Calvin cycle in the chloroplasts

Answer 1

The two steps of photosynthesis are light-dependent reactions in the chloroplasts, Calvin cycle in the chloroplasts.

The correct option is D.

Step-by-step explanation:

The two steps of photosynthesis are light-dependent reactions and the Calvin cycle. Light-dependent reactions occur in the thylakoid membranes of the chloroplasts, where light energy is converted into chemical energy in the form of ATP and NADPH. The Calvin cycle, which is also known as the light-independent reaction or the dark reaction, takes place in the stroma of the chloroplasts, where carbon dioxide is converted into glucose using ATP and NADPH produced in the light-dependent reactions.

So, the correct option is D.