Video Transcript
The diagram shows a basic outline
of an animal cell. Which letter indicates where
anaerobic respiration occurs in the cell?
Cellular respiration is the process
of breaking down glucose to release energy. It can occur aerobically in the
presence of oxygen or anaerobically in the absence of oxygen. These processes occur in different
parts of the cell.
Letter A indicates the nucleus,
where the cell’s genetic information is stored.
Letter C indicates the cell
membrane, which contains the cell’s contents and separates the interior of the cell
from the outside environment.
Letter B indicates a single
mitochondrion. This is actually the site of
aerobic respiration. Aerobic respiration releases energy
in the form of ATP by breaking down glucose in the presence of oxygen.
Letter D indicates the
cytoplasm. This is the site of anaerobic
respiration. Anaerobic respiration can occur in
the absence of oxygen. Glucose is broken down into lactic
acid, and this releases energy as ATP. So the site of anaerobic
respiration in an animal cell is given by letter D.
