DENDROLOGY

TREE PHYSIOLOGY

RESPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What are the products of the light-dependent reactions of photosynthesis
A
ATP, and Oxygen
B
Oxygen and glucose
C
Glucose and ATP
D
NADPH and Oxygen
Explanation: 

Detailed explanation-1: -The light-dependent reactions convert light energy into chemical energy, producing ATP and NADPH . The light-dependent reactions can be summarized as follows: 12 H2O + 12 NADP+ + 18 ADP + 18 Pi + light and chlorophyll yields 6 O2 + 12 NADPH + 18 ATP.

Detailed explanation-2: -The light-dependent reactions convert light energy into chemical energy. The goal of the light-dependent reactions of photosynthesis is to collect energy from the sun and break down water molecules to produce ATP and NADPH. These two energy-storing molecules are then used in the light-independent reactions.

Detailed explanation-3: -The products of light reaction are ATP, NADPH and oxygen of which oxygen is released into the atmosphere, NADPH acts as reducing agent and ATP is consumed during the carbon dioxide fixation in dark reaction.

Detailed explanation-4: -The light-dependent reaction is a photochemical reaction taking place in the thylakoid membranes of chloroplasts, where light energy is transformed into adenosine triphosphate (ATP) and nicotinamide adenine dinucleotide phosphate (NADPH).

Detailed explanation-5: -Yes, oxygen is produced in the light reaction of photosynthesis in lumen thylakoid by the photolysis of water.

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