Question

Fermentation by yeast experiment

1. Do animal cells (such as yours) ever perform fermentation? Explain.

Aerobic cellular respiration in beans experiment

2. Which beaker of kidney beans produced the fastest color change?

3. Which beaker of pinto beans produced the fastest color change?

4. Which type of beans (kidney or pinto) produced the fastest color change?

Answer 1

Answer 1:

Fermentation is the process by which glucose can be used to produce energy when oxygen is not present, i.e. under anaerobic conditions. It generally occurs in yeast, but it can also occur in animal cells.

In animal cells it can take place in the muscle cells during intense physical activity when oxygen supply to muscle cells is low, and there is a lack of oxygen.

In muscle cells, the fermentation of glucose produces lactic acid or lactate, along with the generation of two ATP molecules.