PHOTOSYNTHESIS
LIGHT DEPENDENT REACTIONS
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
|
|
NADPH
|
|
|
ATP
|
|
|
Oxygen
|
|
|
Carbon dioxide
|
Detailed explanation-1: -Complete answer: NADH is not a product of light reaction of photosynthesis. The role of NAD+ is that it acts as an electron carrier. Nadh is formed by NAD when it oxidizes the compound by accepting electrons and adds hydrogen ions to the compound.
Detailed explanation-2: -The light-dependent reaction of photosynthesis utilizes water (H2O) and produces oxygen (O2). The light reactions of photosynthesis supply the Calvin cycle with carbon dioxide to produce sugars.
Detailed explanation-3: -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-4: -Explanation: The products of the light independent reaction are glucose, NADP+, and H2O. The reactants are CO2, NADPH, and ATP.
Detailed explanation-5: -Answer and Explanation: The answer is (c) oxygen. The products from the light-independent reactions are ADP, NADP+, Glucose, free phosphates, and water.