Cellular Respiration – Aerobic, Anaerobic, & Fermentation Mr. Banwart Biology.

Cellular Respiration – Aerobic, Anaerobic, & Fermentation

Mr. BanwartBiology

Photosynthesis & Respiration

Oxygen & Cellular Respiration

Cellular respiration has 2 pathsAerobic

With oxygen present

Anaerobic without oxygen

present

Cellular Respiration

Anaerobic Aerobic

Glycolysis

Krebs Cycle

electron chain

Fermentation

Aerobic

If oxygen is present…Glycolysis runs

and the products are moved onto the Krebs cycle & the electron transport chain

AnerobicIf oxygen is not present…Glycolysis can

continue through the process of fermentation

2 typesLacticalcoholic

Lactic Acid Fermentation

Lactic acid fermentationUsed by most

organisms to produce ATP without the presence of oxygen

Alcoholic Fermentation

Alcoholic fermentationUsed by yeast

and some other microorganisms

This process is used to make alcoholic drinks

Fermentation and an oxygen debtLactic fermentation can only provide so much energy…After 90 seconds, oxygen must be

used to create more ATPThis is why you huff and puff after longer

exercises Your body is trying to get enough oxygen to

replenish ATP stores

Graph Reading and analysis

Use the graph to answer the following questions

Graph Reading and analysis

As the exercise difficulty increased, what happened to oxygen uptake?

Graph Reading and analysis

Between what level of difficulty did the uptake reach 2?