Question

Select ALL that apply. The first step of cellular respiration involves _____.

Answer 1

Answer:

• Takes place in the cytoplasm;
• Produces a net gain of 2 ATP;
• The splitting of a glucose molecule.

Explanation:

Glycolysis is the first step in cellular respiration, and as its name induces, it represents the breakdown of the glucose molecule. It is an anaerobic stage, that is, it does not use oxygen. The glycolysis step occurs in cytosol (cell cytoplasm).

It can be divided into two parts: In the first, there is the energy expenditure (2 molecules of  ATP), and in the second, energy production occurs (4 ATP molecules are produced).

Glycolysis is a low energy step since it produces only 4 ATP molecules. However, its process consumes 2 ATP molecules, resulting in a balance of only 2 ATP at this stage.

Answer 2

The splitting of glucose molecule, I hope this helped! :)