In plant and animal cells, it is a process in which energy is released from food molecules such as glucose without requiring oxygen. Some aerobic plants and animals are able to use anaerobic respiration for short periods of time. For example, during a sprint, human muscles can respire anaerobically.
Unfortunately, lactic acid is produced and accumulates until the muscles cannot continue working. Anaerobic respiration in humans is less efficient than aerobic respiration at releasing energy, but releases energy faster. This explains why humans can run faster in a sprint than over longer distances. When humans stop after a sprint, they have to continue breathing more heavily for a while. This is to take in extra oxygen in order to break down the accumulated lactic acid on top of the normal breakdown of sugar in aerobic respiration. The body is paying back the oxygen debt built up during the sprint. . Anaerobic respiration is the process by which non-oxygen dependent organisms breath. It is mostly commonly used in the process of fermentation. Anaerobic respiration is respiration that uses electron acceptors other than oxygen. Anaerobic respiration can be found in protozoans and bacteria. Anaerobic respiration is a type of cellular respiration. It occurs when oxygen is not available or is available in very low quantities. It is also a respiration in the absence of oxygen. Oxygen is not used as the final electron acceptor.
The body responds first to the partial pressure of carbon dioxide in the blood. PCO2)
Enzymes are protein materials found in all areas of the body. In the respiratory system, enzymes act as catalyst for the many chemical reactions.
The respiratory tract is coated with mucus to seal the tissues from direct contact with the air. Water is a prime constituent of the mucus. As air crosses these surfaces of the mucous membranes it picks up water. The lungs present a large, wet surface to the air. The sinus cavities have a volume of space for warming incoming air, and they present another modestly sized wet surface to air passing through them. Same with the much smaller nasal cavities. And the back of the throat and the trachea.
The main organs of the excretory system are the kidneys, which filter nitrogen-based wastes from your blood. Accessory organs for the kidneys are the ureters, bladder, and urethra. Together these make up the urinary system.
Lungs remove carbon dioxide from your body. These are also part of the respiratory system.
The sweat glands of the skin get rid of wastes. The skin is also part of the integumentary system, and, through its sense of touch, is part of the senses of the nervous system.
The liver, which is also part of the digestive system, breaks down drugs and toxins for excretion. The liver also makes bile.
The large intestine, or colon, removes excess water from solid food wastes, which are then expelled through the anus in the form of feces.