a. Anaerobic respiration starts with _________ ATP, ends with _________ ATP, and has a net of _________ ATP.

a. The product of aerobic respiration has _________ ATP.

24 2

34

i. Don’t forget! This phase come after anaerobic respiration! That means that we must add the product ( _______ ATP ) from the first phase!4

4 ATP + 34 ATP = ______ ATP(anaerobic product) (aerobic product) (final product)

38

*Q: How many ATP are we left with at the end of the anaerobic phase? How about the aerobic phase?

*Q: Which phase do you think is more efficient? Why?

a. Remember net value? We must ________________ the value we used to start the reaction from the final product! This starting value was _____ ATP.

38 ATP - 2 ATP = ___________ ATP(total product) (energy used (net ATP)

to initiate reaction)

subtract

2

34

b. Let’s review!i. 2 ATP = _____________________________________

ii. 4 ATP = _____________________________________

iii. 2 ATP = ____________________________________

iv. 34 ATP = ____________________________________

v. 38 ATP = ____________________________________

vi. 36 ATP = ___________________________________

Energy used to initiate reaction

Total (gross) of the first (anaerobic) phase

Net ATP from the first (anaerobic) phase

Total (gross) of the second (aerobic) phase

Total (gross) ATP from both phases

Net ATP from both phases

*Q: NOW why do you think ATP is called“the currency of the cell”?

CHARACTERISTIC ANAEROBIC RESPIRATION

AEROBIC RESPIRATION

Efficiency

Net ATP

Gross ATP

Final Products

Area Where It Occurs

less efficient more efficient

2 ATP 36 ATP

4 ATP 38 ATPAlcohol + CO2 + 4 ATPor Lactic acid + 4 ATP H2O + CO2 + 34 ATP

cytoplasm mitochondria

a. The main product is ATP. Cells do this process to make energy for the body.

b. HOWEVER, the main purpose of cellular respiration is to exchange gases in the cell!

c. Don’t forget – in alcohol fermentation, you are releasing ____________ and in aerobic respiration you are taking in ______________ and letting out ________________ gases!

CO2

O2 CO2

1. A person will breathe deeply and rapidly for some time after a period of very strenuous exercise. The longer and more intense the exercise was, the longer the deep breathing will continue after the exercise stops. Using your understanding of cellular respiration, explain why strenuous exercise stimulates deep breathing that continues after the end of exercise.

2. If a person moved from San Diego, CA to Estes Park, CO (elevation 7500 ft.), what would be the effect on cellular respiration for this person?

3. What effect might smoking cigarettes have on cellular respiration?