Concept #1: Redox Reactions
Example #1: Which of the following molecules is oxidized and which is reduced?
Practice: Oxidation is the _________________________, and reduction is the _________________________.
a) Gain of electrons; Loss of electrons.
b) Gain of protons; Loss of protons.
c) Loss of electrons; Gain of electrons.
d) Gain of oxygen; Loss of oxygen.
Practice: When glucose donates electrons to NAD+ creating NADH, the glucose molecule becomes:
a) Hydrolyzed.
b) Oxidized.
c) Neutral.
d) Reduced.
Concept #2: Redox Reactions
Practice: An electron carrier before it harvests energy from glucose molecules in a series of gradual steps is:
a) Pyruvate.
b) AMP.
c) ATP.
d) NAD+.
e) NADH.
Concept #3: Redox Reactions
Practice: NADH is commonly used as an electron carrier during the breaking down of complex molecules like glucose in cellular respiration. NADPH is also a common electron carrier. However, NADPH is used to build complex molecules like glucose in a process called:
Practice: Which electron carrier is not matched with its correct function.
