AP BIOLOGY

PHOTOSYNTHESIS

LIGHT DEPENDENT REACTIONS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
ADP and NADP+
A
Store energy
B
Release energy
C
Store glucose
D
Fix carbon dioxide
Explanation: 

Detailed explanation-1: -When one phosphate group is removed by breaking a phosphoanhydride bond in a process called hydrolysis, energy is released, and ATP is converted to adenosine diphosphate (ADP). Likewise, energy is also released when a phosphate is removed from ADP to form adenosine monophosphate (AMP).

Detailed explanation-2: -Therefore, when ATP converts to ADP, breaks one phosphoanhydride bond, and releases-30.5 kJ/mol.

Detailed explanation-3: -ADP and NADP+ move back from the Calvin cycle, restores in the thylakoid membrane, and participate in the light-dependent reaction. NADPH and ATP are produced mainly in the light-dependent reaction. Conversion of NADP+ to NADPH yields one molecule of water.

Detailed explanation-4: -Six molecules of both ATP and NADPH are used. For ATP, energy is released with the loss of the terminal phosphate atom, converting it into ADP; for NADPH, both energy and a hydrogen atom are lost, converting it into NADP+.

There is 1 question to complete.