Multiple choice

The breakdown of pyruvate to give carbon dioxide, water and energy takes place in

  1. Cytoplasm

  2. mitochondria

  3. chloroplast

  4. Nucleus

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Mitochondria are sometimes described as the powerhouse of the cell because they generate most of the cell's supply of adenosine triphosphate (ATP), used as a source of chemical energy.