BioEnergetics Revision

Question 1

low energy bond examples

Answer 1

1. phosphate ester (glucose 6 phosphate)
2. carboxyl ester (TAG)
3. Glycosidic (disaccharide)
4. Peptide bonds

Question 2

high energy bond examples- High energy phosphate

Answer 2

1. enol phosphate bond (2PEP)
2. carboxyl phosphate bond (1,3 BPG) (carbamoyl phosphate)
3. Guanidine phosphate bond (creatine phosphate)
4. pyrophosphate bond (ATP)

Question 3

high energy bond examples- high energy sulfur

Answer 3

1. this ester linkage (acyl coA derivatives)
2. SAM
3. PAPS
4. B ketoacyl coA

Question 4

2 ADP to high energy

Answer 4

2 ADP –adenylate kinase–> ATP + AMP

Question 5

substrate level phosphorylation

Answer 5

formation of high energy compound and transfer of high energy from ADP to form ATP

Question 6

EX of substrate level phosphorylation glycolysis

Answer 6

glyceraldehyde 3 p –> 1,3 BPG –> 2 phosphoglycerate –> 2PEP –> Pyruvate

Question 7

EX of substrate level phosphorylation of citric acid cycle

Answer 7

a-KG –> Succinyl CoA –> Succinate + CoA

Question 8

oxidative decarboxylation reaction is

Answer 8

irreversible
requires 5 enzymes
catalyzed by enzyme complex
result in next lower acetyl coA