Chapter 9 - Cellular respiration and fermentation

Question 1

Chemical reactions that transfer electrons between reactants are called

Answer 1

oxidation-reduction reactions, or redox reactions

Question 2

Loss of electrons from a substance

Answer 2

Oxidation

Question 3

Addition of electrons to a substance

Answer 3

Reduction (the amount of positive charge is reduced)

Question 4

To release energy stored in organic molecules

Answer 4

Transfer electrons during chemical reactions

Question 5

A reducing agent

Answer 5

Donates electrons

Question 6

An oxidizing agent

Answer 6

Accepts electrons (oxidized the electron donor).

Question 7

If an electron shifts from an less electronegative atom toward a more electronegative one, it ___________.

Answer 7

loses potential energy

Question 8

Redox reactions that move electrons closer to electronegative O atoms _____________.

Answer 8

Release energy

Question 9

Nicotinamide adenine dinucleotide, NAD+ is:

Answer 9

A coenzyme that functions as an electron carrier.