1. Thursday 11/6/14
AIM: Why do organisms perform cellular respiration? DO NOW: How does your body get the energy it needs?

2. What is RESPIRATION??
process by which a cell breaks down food (glucose) and changes the energy stored in food into a more usable form (ATP).
**it occurs in the cells of ALL ORGANISMS !
There are 2 Types of respiration…
1. Aerobic 2. Anaerobic

3. What is AEROBIC Respiration??
AEROBIC = with oxygen
process of breaking down glucose in the presence of oxygen to produce a lot of energy (36 ATP’s).
**occurs only in the presence of OXYGEN !!
Formula:
Glucose + oxygen + water→ carbon dioxide + water + 36 ATP
C6H12O6 + H2O +O CO H2O ATP

5. What are REACTANTS?
substances that go INTO a reaction.
Reactants for aerobic resp :
Glucose – from food ingested.
Oxygen – from the environment
Water – from the environment

6. What are PRODUCTS?
substances that are produced by a reaction.
Products of aerobic resp:
CO2 –
- waste product that is excreted into the environment.
H20 –
- waste product that is excreted into the environment.

7. - high energy compound that is used to fuel cell processes.
ATP
- high energy compound that is used to fuel cell processes.
What is cellular respiration?
Write down New Vocab words!

8. Where does it occur in the cell?
**it occurs in the MITOCHONDRIA of all organisms !

9. What is ANAEROBIC RESPIRATION (or FERMENTATION)?
ANAEROBIC = without oxygen
process that produces a smaller amount of energy (2 ATP’s) by breaking down glucose WITHOUT OXYGEN!
** occurs when oxygen IS NOT available!
There are 2 TYPES…

10. produces alcohol as an end product. Formula:
1. ALCOHOL FERMENTATION
produces alcohol as an end product.
Formula:
Glucose → alcohol + carbon dioxide + 2ATP + heat
C6H12O6 → alcohol + CO2 + 2 ATP + heat

11. What organisms perform alcohol fermentation?
YEAST – used to make bread & cakes and alcohol (beer, wine, etc.)

12. 2. LACTIC ACID FERMENTATION
produces lactic acid as a waste product.
Formula:
Glucose → lactic acid + carbon dioxide + 2ATP
C6H12O6 → lactic acid + CO2 + 2 ATP

13. What organisms perform Lactic Acid fermentation?
HUMANS – muscle cells perform it for quick, short term energy.
BACTERIA - occurs in bacteria and is important in the dairy industry for the production of cheeses and yogurt.

14. Compare Aerobic to Anaerobic
No Oxygen used
Uses Oxygen
Produces 2 ATP
Produces 36 ATP
Occurs in the
Mitochondria
Occurs in the cytoplasm
Produces Carbon
dioxide
and water
Produces Carbon dioxide
and Alcohol or
Carbon dioxide and
Lactic acid