AP BIOLOGY

Detailed explanation-1: -So, the correct option is ‘Light’.

Detailed explanation-2: -The synthesis of glucose occurs in stroma and this does not require light. Hence, the reaction for synthesis of glucose is a light-independent reaction.

Detailed explanation-3: -Plants rely on the photosynthesis process to obtain energy by two steps: (1) to convert carbon dioxide and water into glucose from sunlight in thylakoids; (2) in the Calvin cycle, energy (adenosine triphosphate, ATP) and oxygen (O2) are released when decomposing glucose into pyruvate in stroma [14].

Detailed explanation-4: -Explanation: The products of the light independent reaction are glucose, NADP+, and H2O. The reactants are CO2, NADPH, and ATP.