1. II. Anaerobic Respiration
AIM: Where does anaerobic respiration happen?
DO NOW: Answer questions on today’s handout
HOMEWORK: 10 Multiple Choice Questions

2. Where might you see fermentation in day-to-day life?
A. Fermentation
Anaerobic respiration is fermentation!
Where might you see fermentation in day-to-day life?
If you ferment wheats or starches,
you get alcohols. If you ferment
fruits or honey, you get wine or mead.
Fermentation of yeast cells in baking
bread causes it to rise.
We use fermentation to make cheeses
and yogurts from milk.

3. 1. Bacteria 2. Yeasts and Molds B. Organisms
Some bacteria produce lactic acid, which
helps make cheese, buttermilk, and yogurt.
2. Yeasts and Molds
In things like bread, wine, beer, and other
alcohol, you are using yeast’s anaerobic
respiration to create alcohol and carbon
dioxide.

4. 3. Skeletal Muscle B. Organisms (cont’d)
During long periods of exercise, muscle cells can use oxygen faster than the body can supply it. These cells then switch from aerobic respiration, to anaerobic respiration and produce lactic acid.
When lactic acid builds up
in the muscle tissue, you
get a burning feeling and
muscle fatigue.
c. Once we get enough
oxygen to those cells again,
aerobic respiration breaks
down the lactic acid.

5. Area Where It Occurs in the Cell
Anaerobic respiration occurs in the cytoplasm of the cell.
Activation Energy
You have to start by converting the glucose molecule into two molecules of pyruvic acid.
This requires 2 ATP to start the reaction! C
GLUCOSE + 2 ATP 
Pyruvic Acid

6. 2 ATP + glucose 2 pyruvic acid 2 lactic acid + 4 ATP
E. Process: Lactic Acid Formation
2 ATP + glucose pyruvic acid lactic acid + 4 ATP
C6H12O (C3) (C3)
1. Numbers of ATP
a. Use 2 ATP to break down glucose
e.g. - 2 ATP
b. Gain 4 ATP at the end of the equation
e.g. + 4 ATP
c. The NET ATP at the end of lactic acid formation process is _____________.
2 ATP

7. 2 ATP + glucose 2 pyruvic acid 2 alcohol + 2 CO2 + 4 ATP
F. Process: Alcohol Formation
2 ATP + glucose pyruvic acid alcohol + 2 CO2 + 4 ATP
C6H12O (C3) 2 (C2)
Alcohol formation has ____________ amount of net ATP as lactic acid formation.
the same

8. ANSWER THE QUESTIONS BASED ON INFO AT YOUR LAB TABLE
SUMMARY
ANSWER THE QUESTIONS BASED ON INFO AT YOUR LAB TABLE

9. Cellular Respiration begins with which can produce can be used in
produces a
net gain of
which is broken
down during
which occurs
in the
which produces
can be used in
which can produce
WORD BANK
Lactic Acid
Pyruvic Acid
Glucose
2 ATP
Fermentation
Anaerobic Respiration
Cytoplasm
Alcohol

10. Wine Barrels

11. 3 – 2 - 1 Name 3 things you learned about
aerobic cellular respiration.
Name 2 things you found interesting.
Name 1 thing you still want to know
about cellular respiration.