Anaerobic Respiration
Aerobic Respiration requires the use of oxygen. What happens when there
is no oxygen available?
Anaerobic respiration can take place but it is very inefficient, meaning it
produces much less energy!
We also call anaerobic respiration fermentation. Do you know what
fermentation is used for?
Make bread, wine, cheese etc…
Yeast carries out alcoholic fermentation –1Type of anaerobic respiration
Happens in Yeast
glucose --->Alcohol + Carbon Dioxide + 2ATP ____________________
Our muscle cells can also carry out anaerobic respiration when there is not
enough oxygen available. This process is called lactic acid fermentation. –
2nd type of anaerobic respiration, happens in mitochondria
glucose --->Lactic Acid + 2ATP__________________________________
Lactic acid builds up in our muscles and makes them sore. That is why
your muscles hurt after a long or particularly hard workout.
Compare and Contrast
Anaerobic Respiration
Aerobic Respiration
Does NOT use Oxygen
USES Oxygen
Both
Makes 36 ATP
Use Glucose
2 Different Kinds
1 Kind
Use enzymes
Products: 36 ATP, CO2, H2O
Make ATP
Products:
Alcoholic Fermentation
2 ATP, CO2, Alcohol
Make CO2
Makes 2 ATP
Lactic Acid Fermentation
2ATP, CO2, lactic acid
Cell Respiration Graphic Organizer
Cellular Respiration begins with 1 molecule of Glucose
Glycolysis
Happens when there
is OXYGEN!
Kreb’s
Cycle
Products:
36 ATP
6 CO2
6H2O
– Aerobic
Cell asks do I
have oxygen?
Happens in
Muscle Cells
Cutting Sugar – Makes 2 ATP
Happens when there
Anaerobic –is NO oxygen!
Lactic Acid
Fermentation
Products:
2 ATP
CO2
Lactic Acid
(makes muscles sore!)
Alcoholic
Fermentation
Products:
2 ATP
CO2
Alcohol
Happens in
Yeast Cells