Transcript Anaerobic respiration - Hicksville Public Schools

Aim: How do living things
accomplish anaerobic
respiration?
What do all living things do to
acquire energy?
To get
What is Anaerobic Respiration?
ENERGY
Organisms make ATP (energy) without oxygen
This process is also called fermentation
There two types of anaerobic respiration:
TWO TYPES OF ANEROBIC
RESPIRATION
• Alcohol Fermentation
• Lactic Acid Fermentation
All Cellular Respiration begins with glycolysis.
- Changing glucose into 2 pyruvic acid.
- This makes 4 ATP but cost 2ATP to happen.
- This happens in the cytoplasm of the cell.
How are these things made?
Lactic Acid
Fermentation
Bacteria
Alcohol
Fermentation
Yeast
Alcohol Fermentation = Glycolysis
Glucose  2 Pyruvic Acid  2 CO22 ATP
+ 2 Ethyl Alcohol
What is the name of the process that converts
glucose into pyruvic acid?
Glycolysis
What is the net gain in ATP for this process?
2 ATP
Let’s make some wine!
Besides alcohol what else is a
waste product of alcoholic
fermentation? CO2
CO2
Yeast is a unicellular
organism capable of
carrying out alcoholic
fermentation
Bakers Yeast
The CO2 that is
released during
fermentation creates
bubbles and pockets
that make bread rise.
Can we do anaerobic cell respiration?
Yes, when our
muscles run out
of oxygen they
do lactic acid
fermentation
Lactic Acid Fermentation
Glucose  2 Pyruvic Acid  2 Lactic Acid
2 ATP
What is the name of the process that
converts glucose into pyruvic acid?
Glycolysis
What is the net gain in ATP for this process?
2 ATP
Let’s work out & feel the burn
Glucose has 90 x the energy of ATP
1 Glucose = 2 ATP
The rest is lost as heat
& remains in alcohol
or lactic acid
Types of Anaerobic cell
respiration
• Alcohol fermentation• Lactic acid fermentation
• Glucose
• Glucose
2 ATP + 2CO2 +
2 ATP + Lactic acid
Alcohol
Why do bread and Swiss cheese
have so many holes?
Alcohol fermentation vs Lactic A. Fermentation
• What is the organic compound used by
both?
– Glucose
• What is their main product?
– 2 ATP
• How are they different?
– Alcohol fermentation produces alcohol and
lactic acid fermentation produces lactic acid
Alcohol fermentation vs Lactic Acid
Fermentation
• What organisms utilize alcohol
fermentation?
–Yeast and Bacteria
• What organisms utilize lactic acid
fermentation?
–Bacteria & Animal muscle cells when
they run out of oxygen