Page 101 - Science Course 1 (Book 1)

Mo3-L6a: What is Cellular Respiration?

Lactic - Acid Fermentation
Lactic acid is produced as waste during lactic-acid
fermentation. Carbon dioxide and alcohol are
Glucose ATP + Lactic Acid produced as waste during alcohol fermentation.
(C6H12O6) Energy

Alcohol Fermentation

Glucose ATP + Carbon dioxide + Alcohol
(C6H12O6) Energy (CO2)

Key Concept

What is cell respiration?
How does a cell obtain energy?

SUMMARY
What is Cellular Respiration?

Fermentation provides cells, such as muscle cells, Glycolysis is the first step in
with energy when oxygen levels are low cellular respiration.

Lactic - Acid Fermentation
ATP
Glucose ATP + Lactic Acid Sugar
(C6H12O6) Energy (Glucose) Cytoplasm

Alcohol Fermentation
Chemical
Reaction
Glucose ATP + Carbon dioxide + Alcohol
(C6H12O6) Energy (CO2) Small ATP

Molecule

C6H1206 +6 O2

Glucose Oxygen

CO2 +6 H20 + ATP

Carbon dioxide Water Energy
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