8.2

Question 1

Glucose oxidation

Answer 1

1. Glycolysis (in cytosol)
2. Pyruvate oxidation (in matrix)
3. Krebs cycle (in matrix)
4. electron transport chain and chemiosmosis (inner membrane)

Question 2

Glycolysis

Answer 2

Converts 1 glucose into 2 pyruvates
-multi step biochemical pathway
2 phases: energy input and energy production

Question 3

Glucose is first converted into 2 G3P molecules

Answer 3

G3P requires energy input
-hydrolysis of 2 ATP molecules
-needed to prime cleavage of glucose backbone

Question 4

Each G3P molecule is converted into pyruvate

Answer 4

G3P is oxidized: NAD+=>NADH
Pi is added to G3P
Subsequently each Pi (4 total) will be transferred to ADP
Products of glycolysis:
2 ATP (net) + 2 NADH

Question 5

ATP synthesis during glycolysis

Answer 5

-Occurs via substrate level phosphorylation
-direct transfer of Pi from another molecule (PEP) to ADP