What is tissue respiration

Tissue respiration is the process where cells in multicellular organisms break down glucose and other fuel molecules in the presence of oxygen to produce ATP, the main energy currency of the cell. This process releases energy that cells need to perform their functions. It occurs in multiple stages, starting with glycolysis in the cytoplasm and continuing with the Krebs cycle and oxidative phosphorylation in the mitochondria. Carbon dioxide and water are produced as byproducts.