Question

Answer all the question

1. Electrons like to move it, move it!

a. What do we call reactions that transfer electrons between reactants?

b. What does it mean when a substance is oxidized? What does it mean when a substance is reduced? How are oxidation and reduction related?

c. What are the two electron carriers found in the process of cellular respiration?

d. Ultimately, where do the electron carriers bring electrons to? What is the purpose of moving these electrons?

Answer 1

Ans-a

Reactions in which electron transfer occur called redox reaction in which one reactant is oxidized other being reduced it means one electron losses electron while other electron gain electrons this type of the reaction is very important in respect to biology.

Ans-b

When substance is oxidized it mean it loss electrons while when substance is reduced it means it gain electrons when these two phenomena occur in same reaction than it is called redox reaction in which one substance loss electron while other being gain electrons. It mean both oxidation and reduction are coupled to each other in same reaction.

Ans-c

Nicotinamide adenine dinucleotide(NAD) and (FAD)flavin adenine dinucleotide is electron careers with temporary store energy or electrons via reduction reaction and transfer electrons to various coenzymes and ultimately which is accepted by oxygen molecules in electron transport chain reaction.

Ans-d

Electron carriers transfer electrons ultimately to oxygen molecules and purpose of moving electron in respiratory chain to generate proton gradient across mitochondrial membrane which is directly proportional to generation of energy in form of ATP.