1. Cellular Respiration Ipp

2. How do organisms “eat”?
Autotrophs get energy by making their organic molecules such as glucose through photosynthesis
Heterotrophs break down the glucose to make ATP to fuel their metabolism

3. What is Cellular Respiration?
A process that converts glucose into energy
Occurs in or near the mitochondria
6 O2 + C6H12O6  6 CO2 + 6 H2O + energy

4. COPY THIS INTO YOUR NOTES

5. Two Pathways Path is determined by the presence of oxygen
If O2 is ABSENT then anaerobic respiration occurs in the cytoplasm.
If O2 is PRESENT then aerobic respiration occurs in the mitochondrion.

6. aerobic anaerobic (with oxygen) (without oxygen)

8. Anaerobic Respiration (no O2)
First step is glycolysis
Occurs in the cytoplasm by the mitochondria
Products: 2 ATP and 2 NADH
A (6 carbon) glucose breaks apart in 2 (3 carbon) pyruvic acids
Pyruvic acid is also called pyruvate

9. Anaerobic Respiration (no O2)
Second step is fermentation
The pyruvate is converted into ethyl alcohol or lactic acid
Ex: Wine, Antibiotics, Yeast

10. Fermentation Alcoholic Fermentation:
Occurs in yeast to make wine or champagne
Glucose  Pyruvate  Ethyl alcohol and Carbon Dioxide

11. Fermentation Glucose  Pyruvate  Lactic acid
Lactic Acid Fermentation:
Can in your muscles during exercise
Glucose  Pyruvate  Lactic acid