respiration

• Cellular respiration requires oxygen and produces carbon dioxide as a waste product.
• Respiration is the chemical process that supplies the body with energy for all other life processes
• Growth and repair of cells, muscle contraction, protein synthesis, sending nerve impulses, absorbing molecules and active transport are some processes that require energy from respiration
• Respiration occurs in all living cells, including animal cells and blood cells
• There are two types of respiration: aerobic and anaerobic respiration
• Aerobic respiration releases energy in cells by breaking down food substances in the presence of oxygen
• Glucose is broken down by oxygen to release carbon dioxide and water as byproducts
• Energy released from aerobic respiration is used to make a special energy molecule called ATP, which is stored for later use by the body
• Aerobic respiration usually occurs in the mitochondria of cells
• Animals get the oxygen needed for aerobic respiration from the air through their ventilation systems
• Plants get oxygen for respiration from the air through the stomata
• Plants respire throughout the day and night, but they only photosynthesize during the day when there is light available
• Aerobic respiration works by breaking down glucose in the presence of oxygen to release carbon dioxide, water, and energy