7.4

Question 1

Order of cellular respiration? Inputs and outputs?

Answer 1

Glycolysis
- Inputs: Glucose, ADP
-Outputs: Pyruvate, ATP, NADH
Link Reaction
- Inputs: Pyruvate
- Outputs: Acetyl-Coenzyme A, NADH
Krebs Cycle
- Inputs: Acetyl-Coenzyme A
- Outputs: CO2, ATP, NADH, FADH2
Electron Transport Chain
- Inputs: H+, NADH, FADH2, Oxygen, ADP.
- Outputs: ATP, water

Question 2

Where is each stage located?

Answer 2

Glycolysis - Cytoplasm
Link Reaction - Matrix
Krebs Cycle - Matrix
Electron Transport Chain - Intermembrane space.

Question 3

What is the equation for cellular respiration?

Answer 3

C6H12O6 + 6O2 > 6CO2 + 6H2O + ATP

Question 4

What happens to respiration with and without oxygen?

Answer 4

With oxygen (aerobic):
Regular cycle, produces a regular amount of ATP

Without oxygen (anaerobic):
Does not produce ATP, instead producing more NAD+ from NADH, keeping the glycolysis reaction running. Bacterial makes ethanol, lactic makes lactic acid.

Question 5

How does the structure of the mitochondria affect the production of ATP

Answer 5

Since mitochondria has so many folds, it has more surface area, meaning it can carry more electron transport chain proteins or Krebs cycle proteins, meaning it can possibly make more ATP.