Question

which statement is the most accurate regarding the first stage of photosynthesis? (1 point)
○ radiant energy is converted into chemical energy, and this is a light - independent stage.
○ sugar molecules like glucose are formed, and this is a light - independent stage.
○ sugar molecules like glucose are formed, and this is a light - dependent stage.
○ radiant energy is converted into chemical energy, and this is a light - dependent stage.

Explanation:

The first stage of photosynthesis is the light - dependent stage. In this stage, radiant (light) energy is absorbed and converted into chemical energy (in the form of ATP and NADPH). The formation of sugar molecules like glucose occurs in the light - independent (Calvin cycle) stage, not the first stage. So we need to find the option that says radiant energy is converted to chemical energy and that it is a light - dependent stage.

Answer:

D. Radiant energy is converted into chemical energy, and this is a light - dependent stage. (assuming the options are labeled A, B, C, D in the order they appear, with the last option being D)