Question

anaerobic cellular respiration basic

1. anaerobic respiration is also called...
2. the fermentation process includes which stage that is also present in aerobic respiration?
3. what is the by - product of fermentation in humans?
4. what are the products of fermentation in yeast?
5. the absence of which substance will determine if a cell will undergo fermentation?

Explanation:

1. Anaerobic respiration is also known as fermentation. It occurs in the absence of oxygen.
2. Glycolysis is the stage common to both aerobic and anaerobic respiration (fermentation). It breaks down glucose into pyruvate.
3. In humans, the by - product of fermentation (lactic acid fermentation) is lactic acid. This occurs when the body needs energy quickly and oxygen is limited, such as during intense exercise.
4. Yeast undergoes alcoholic fermentation. The products are ethanol and carbon dioxide. This is used in baking and brewing.
5. The absence of oxygen determines if a cell will undergo fermentation. In the presence of oxygen, cells will typically undergo aerobic respiration.

Answer:

1. Fermentation
2. Glycolysis
3. Lactic acid
4. Ethanol and carbon dioxide
5. Oxygen