EVERYDAY SCIENCE

Detailed explanation-1: -FIGURE 8-6 NADP+ is a carrier molecule that transports pairs of electrons (and an H+ ion) in photosynthetic organisms, similar to how an oven mitt is used to transport a hot object such as a baked potato.

Detailed explanation-2: -NADH is the reduced form of the electron carrier, and NADH is converted into NAD+. This half of the reaction results in the oxidation of the electron carrier. Pyruvate is converted into lactic acid in this reaction.

Detailed explanation-3: -NAD+ is an electron carrier because it carries the electrons of a hydride from one region of a cell to another. The structure of NAD+ provides a stable shuttle for the movement of electrons across the reactive landscape that is the internal environment of a cell.

Detailed explanation-4: -This transfer of electrons occurs as a result of redox reactions, whereby one molecule donates electrons and another molecule accepts electrons. NAD is one of the main electron carriers in redox reactions, with a unique ability to function as both a donor and an acceptor.

Detailed explanation-5: -The electron carriers in cellular respiration involve two molecules, called nicotinamide adenine dinucleotide (NAD+) and flavin adenine dinucleotide (FAD).