AP BIOLOGY

PHOTOSYNTHESIS

LIGHT DEPENDENT REACTIONS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which molecule is carrying electrons?
A
ADP
B
ATP
C
NADPH
D
NADP+
Explanation: 

Detailed explanation-1: -NADPH carries high-energy electrons to the electron transport chain in photosynthesis.

Detailed explanation-2: -NADPH works with a wide variety of enzymes, and is considered one of the universal electron carriers.

Detailed explanation-3: -Likewise, in other reactions, NADPH carries electrons and protons into the new carbon-carbon bonds, creating sugar molecules. It is kept at higher concentration in the cytosol than NADP+, for allowing it for the easy reduction of small molecules into the larger macromolecules.

Detailed explanation-4: -NADPH will travel to the Calvin cycle, where its electrons are used to build sugars from carbon dioxide.

Detailed explanation-5: -The chemical energy that plants use are stored in ATP and NADPH. ATP and NADPH are two kinds of energy-carrying molecules. These two molecules are not only in plants, as animals use them as well.

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