1. AIM- What are the 2 types of respiration?
Homework-first quarter review packet due tomorrow!

2. 2 Types of Respiration

3. Aerobic Respiration Oxygen is required. Occurs in the mitochondria.
36 ATP are produced.
Occurs in animals and plants.

4. Structure of the mitochondria:

5. Occurs in 3 stages: 1. Glycolysis Occurs in the cytoplasm
1 glucose is broken in half to form 2 molecules of pyruvic acid.
2 molecules of ATP get glycolysis going, 4 ATP are produced in the process for a net gain of 2 ATP.

6. 2. Kreb’s Cycle Occurs in the mitochondrial matrix.
Pyruvic acid gets broken down into CO2
2 ATP are produced here.

7. 3. Electron Transport Chain
Occurs in the cristae
A protein called ATP synthase attaches phosphates to ADP molecules forming ATP.
Almost all of the ATP
created during cellular
respiration is produced
during this step.

8. Formula: C6H12O6+6O2  6CO2+6H2O+Energy
*Reaction is controlled by a series of enzymes.

9. Anaerobic Respiration
Also known as Fermentation.
Occurs in the cytoplasm.
Produces 2 ATP.
Occurs in some bacteria and yeast.
2 types- lactic acid fermentation and alcoholic fermentation.

10. Lactic Acid Fermentation
Glucose  lactic acid + 2ATP
Can occur in human muscle cells during periods of strenuous activity and oxygen deprivation.
Performed by some bacteria.

11. Alcoholic Fermentation
Glucose alcohol + CO2 + 2ATP
Performed by yeast and certain bacteria.
Important for wine making and brewing industries.