Question

Diagram the overall cellular respiration process. Be sure to label all parts. Number the order of events and describe the progression. Make sure to include inputs, outputs, and amount of ATP used and made.

Answer 1

1. Glycolysis - occurs in the cytosol

input - glucose, 2 NAD+, 2ATP, 4ADP, inorganic phosphate

Output- 2 pyruvate, 2NADH, 2ADP, 2ATP(net gain)

2. Pyruvate oxidation- OCCURS IN mitochondrial matrix

input- 2 pyruvate

output- 2 acetyl CoA, 2 CO2, 2NADH, 2H+

3. Krebs cycle- occurs in matrix of mitochondria

input- 2 acetyl groups, 6 NAD+, 2 FAD, 2ADP ,2 inorganic phosphate

output- 4 CO2, 6 NADH, 2FADH2, 2ATP

4. Electron transport chain- occurs in inner mitochondrial membrane

Inputs- NADH2, FADH2,O2

Output- NAD+, FAD ATP, H2O

Final equation of respiration-

C 6 H 12 O 6 + 6 O 2 --> 6 CO 2 + 6 H 2 O + ATP

ATP production summary

Respiration steps	Energy molecules produced	Total ATP
glycolysis	2 ATP	2ATP
	2NADH	4-6 ATP
Oxidative decarboxylation	2NADH	6 ATP
Kreb`s cycle	6 NADH	18ATP
	2FADH2	4ATP
	2ATP	2ATP

TOTAL ATP = 36- 38 ATP