AP BIOLOGY

PHOTOSYNTHESIS

LIGHT DEPENDENT REACTIONS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
It is an energy intermediate that provides the energy and electrons to drive the Calvin cycle during photosynthesis
A
NADP+
B
ATP
C
NADPH
D
NAPDH
Explanation: 

Detailed explanation-1: -NADPH will travel to the Calvin cycle, where its electrons are used to build sugars from carbon dioxide. The other ingredient needed by the Calvin cycle is ATP, and this too is provided by the light reactions.

Detailed explanation-2: -ATP and NADPH are produced on the stroma side of the thylakoid membrane, where they can be used by the Calvin cycle.

Detailed explanation-3: -Answer and Explanation: Calvin Cycle includes three stages-fixation, reduction, and regeneration. In fixation, CO2 is fixed from an inorganic to become an organic molecule. In the second stage, ATP and NADPH are used to reduce 3-PGA into G3P, then ATP and NADPH are converted to ADP and NADP+, respectively.

Detailed explanation-4: -The Calvin cycle uses 6 molecules of carbon dioxide to produce a single 6-carbon sugar molecule. The energy for the reactions is supplied by compounds produced in the light-dependent reactions.

Detailed explanation-5: -Step 1: Light reaction of photosynthesis The light reaction is the first stage of photosynthesis, followed by the Calvin cycle. In light reactions, the pigment chlorophyll collects light energy and converts it into chemical energy in the form of electron charge carrier molecules like NADPH and ATP.

There is 1 question to complete.