AP BIOLOGY

PHOTOSYNTHESIS

LIGHT DEPENDENT REACTIONS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What substance is produced at the end of the light dependent reaction?
A
NADPH
B
NADP
C
Carbon dioxide
D
Glucose
Explanation: 

Detailed explanation-1: -The net effect of these steps is to convert light energy into chemical energy in the form of ATP and NADPH. The ATP and NADPH from the light-dependent reactions are used to make sugars in the next stage of photosynthesis, the Calvin cycle.

Detailed explanation-2: -ATP and NADPH produced by the light-dependent reactions of the photosystems are used by the Calvin cycle in the stroma of the chloroplast.

Detailed explanation-3: -The three products of the light reaction of photosynthesis are ATP, NADPH, and O2.

Detailed explanation-4: -Nicotinamide adenine dinucleotide phosphate, an energy carrier molecule produced in the light reactions of photosynthesis. NADPH is the reduced form of the ele ctron ac ceptor NADP+. At the end of the light reactions, the energy from sunlight is transferred to NADP+, producing NADPH.

Detailed explanation-5: -The chloroplasts present in the plants also use NADPH as a part of the pathway to synthesize sugars from the sunlight and also from the carbon dioxide. Likewise, in other reactions, NADPH carries electrons and protons into the new carbon-carbon bonds, creating sugar molecules.

There is 1 question to complete.