Respiration PPTTEACHER NOTES

This PPT was revised June 24, 2008 There is a notes handout for this PPT.

Respiration

To Breathe or Not to Breathe?

Respiration Respiration is the breakdown of

food (glucose) to release energy. Where does this take place?

Enzymes (catalyst) are special proteins that control the process of respiration.

mitochondriahttp://www.tu-bs.de/institute/botanik/plastid.html

Cellular RespirationGlucose

(C6H12O6)

Glycolysis

ATP

(no O2 present) Fermentation

Anaerobic

(O2 present)Oxidative

RespirationAerobic

ATP

Step One

Step Twodepends on whether Oxygen is present or not

ATP activation energy to start the breakdown of glucose

Oxidative Respiration Aerobic

Respiration OXYGEN is

present

CO2 H2O

O2

Oxidative RespirationAerobic

(O2 present)

36 ATP

Step Two(if oxygen is present)

FERMENTATION This is anaerobic respiration. NO oxygen present

Alcohol Fermentation

EX: yeastethyl alcohol

+ carbon dioxide

Lactic Acid Fermentation

lactic acid

EX: muscles

Step Two(if NO oxygen is present)

Fermentation Anaerobic

(no O2 present)

Fermentation Total ATP

2 ATP

Respiration Formulas

AEROBIC RESPIRATIONAEROBIC RESPIRATION OXIDATIVE Cellular Respiration

C6H12O6 + O2 CO2 + H2O + 36 ATP

glucose + oxygen carbon dioxide + water + 36 ATP

Respiration Formulas

ANAEROBIC RESPIRATIONANAEROBIC RESPIRATION ALCOHOL Fermentation

C6H12O6 C2H6O + CO2 + 2 ATP

glucose ethyl alcohol + carbon dioxide + 2 ATP

Respiration Formulas

ANAEROBIC RESPIRATIONANAEROBIC RESPIRATION LACTIC ACID Fermentation

C6H12O6 C3H5O3 + 2 ATP

glucose lactic acid + 2 ATP

TRY THIS!

Explain what was happening in this experiment.

Process: Photosynthesis

Organism: Plant

Place Occurs: Chloroplast

Glucose and O2

Process: Respiration

Organism: ALL

Place occurs: Mitochondria

CO2 and H2O

ATP

Cycle of Energy in Life

Works Cited• Biology Curriculum Writing

Team, Plano Independent School District