The document discusses different types of cell respiration. Glycolysis is the initial breakdown of glucose that occurs in the cytoplasm. There are two main pathways for respiration after glycolysis: anaerobic respiration which occurs without oxygen, and aerobic respiration which requires oxygen. Anaerobic respiration includes lactic acid fermentation in muscle cells and alcoholic fermentation done by bacteria on foods. Aerobic respiration fully breaks down glucose into water, carbon dioxide, and generates significantly more ATP using oxygen in the mitochondria.

1. Cell Respiration