Jessie, Diego, Ting-Ting, Mychi

Key Vocabulary Words:

1) Cell Respiration: The controlled release of energy in the form of ATP from organic

compounds in cells

2) ATPase: The enzyme needed to catalyse the hydrolysis reaction of ATP breaking

down into ADP and releasing 30.7kJ of energy

3) Phosphorylation: The process of adding a phosphate group to ADP (to synthesise

ATP)

4) Glycolysis: In cell respiration, glucose in the cytoplasm breaks down into pyruvate

(three-carbon compound) with a small yield of ATP

5) Anaerobic Respiration: Respiration without using oxygen; Pyruvate in the

cytoplasm is either converted into lactate (in humans) or ethanol and carbon

dioxide (in yeast), with no yield of ATP

6) Aerobic Respiration: Respiration using oxygen; Pyruvate in the mitochondria

breaks down into carbon dioxide and water with a large yield of ATP.

7) Lactic Fermentation: Pyruvate breaks down into lactate (lactic acid) in humans - in

anaerobic respiration

8) Alcohol Fermentation: Pyruvate breaks down into alcohol and carbon dioxide in

yeast - in anaerobic respiration

*Remember, cellular respiration is not the same as breathing*

Cellular respiration is the controlled release of energy from organic compounds in cells

to from ATP.

C6H 126O2→6H 2O+6CO2

Jessie, Diego, Ting-Ting, Mychi

Aerobic respiration occurs in the presence of oxygen. Reactions continue in the

mitochondria.

Anaerobic respiration occurs in the absence of oxygen

Jessie, Diego, Ting-Ting, Mychi

Similarities and differences between Aerobic and Anaerobic Respiration: