Exam 1 Review

Question 1

energy from what is generated in the Krebs cycle and used to drive ATP synthesis through the reactions of electron transfer and oxidative phosphorylation?

Answer 1

NADH and FADH2- they are being oxidized
-the terminal electron acceptor os O2
-O2 is being reduced

Question 2

How can electrons be transferred in biochemical reactions?

Answer 2

-as electrons
-as hydride
-as hydrogen atoms
-in direction combination with O2

Question 3

Catabolic vs. Anabolic

Answer 3

Catabolic- oxidizing, release energy
Anabolic- reductive, require energy

Question 4

Protein Phosphorylation

Answer 4

-proteins can be phosphorylated on threonine, serine, and tyrosine due to the hydroxyl group on their side chain.
-tyrosine does the least amount of phosphorylation
-protein kinases are enzymes that phosphorylate other proteins
-protein phosphatases are enzymes that remove phosphate groups from other proteins