Exam 2 Microbial Metabolism PT 2

Question 1

Redox Reactions

Answer 1

Transfer of electrons from one reactant to another

Oxidation and Reduction

Question 2

Oxidation

Answer 2

loss of an electron

Question 3

Reduction

Answer 3

gain of an electron

Question 4

Dehydrogenations

Answer 4

loss of an H atom
many H atoms=lots of potential energy

Question 5

Types of Phosphorylation Reactions

Answer 5

1.) Substrate Level Phosphorylation
2.) Photophosphorylation
3.) Oxidative Phosphorylation

Question 6

Substrate Level Phosphorylation

Answer 6

Uses an enzyme and substrate to directly transfer a phosphate group to ADP, creating ATP

Question 7

Photophosphoryaltion

Answer 7

• Addition of a phosphate to a molecule
• Light excites the electron, electron moves through chain and releases energy, energy is used to pump H+ atoms through gradient, H+ turns into ATP synthase, Phosphate is added to ADP, then turns into ATP

Question 8

Oxidative Phosphorylation

Answer 8

Take organic compounds and transfer its electrons.

Electron moves through the chain, energy is released, generates H+ gradient, ATP synthase, ATP is made.