Extended Writing Question

Question 1

When does fermentation take place?

Answer 1

Fermentation takes place when oxygen is not

present.

Question 2

Where does fermentation take place?

Answer 2

It begins and is completed in the cytoplasm.

Question 3

Describe the breakdown of glucose

Answer 3

Glucose is broken down to two molecules of
pyruvate.

Enough energy is released to yield two
molecules of ATP.

This is the only energy made during this
process.

Question 4

Describe fermentation in animal cells

Answer 4

In animal cells, the pyruvate molecules are
converted to lactate.

Animal cells: Glucose –> lactate + energy

Question 5

Describe fermentation in plant and yeast cells

Answer 5

In plant and yeast cells, they are converted
to carbon dioxide and ethanol.

Plant and yeast cells: Glucose –> ethanol + carbon dioxide + energy