Inside this tube it has something called the mucosa. In the mouth the teeth can also aid digestion as they cut and grind food particles down into smaller ones. This is also the start of starch digestion initiated by the enzyme amylase which is in saliva from the salivary gland.
An enzyme, named ATP synthase, which is found within the mitochondrial membrane, generates the ATP in the mitochondria. Fibre is indigestible and moves through the digestive area without being broken down by enzymes. Inhale air into your nose or mouth, and it travels down the back of your throat and into your windpipe, or trachea.
The muscles behind the food contract involuntarily and so push it along. The stomach stores the swallowed food and liquid. Breathing starts at the nose and mouth.
Cilia also found along air passages and move to keep the air passages clean. Metabolism can then be divided into two processes, anabolism and catabolism. The waste products of this process e. The oesophagus and stomach, and there is another muscle called the lower oesophageal sphincter, closes the way between the two organs.
During the process of aerobic respiration as many as 38 molecules of ATP are produced for every molecule of glucose that is utilized. The heart then pumps it through the body to provide oxygen to the cells of tissues and organs.
The bronchioles end in tiny balloon-like air sacs called alveoli. This is where fat digestion begins and lipase breaks down lipid into glycerol and fatty acids. Carbohydrates are decayed into glucose, glucose is soluble in blood. These muscles help move the diaphragm up and down for breathing.
The ileum is where mainly B12 is absorbed into the blood capillaries. The bile acids join with the fatty acids and cholesterol and help these molecules move into the cells of the mucosa.
This material is then passed down through the oesophagus, by a process called peristalsis which moves food into the stomach. The hemoglobin proteins in bloodstream pick up the oxygen from your lungs, and that hemoglobin-oxygen complex called ox hemoglobin goes off the oxygen to all the other parts of your body.
Energy is essential for the body to survive. Aerobic Respiration Aerobic respiration is the process that takes place in presence of oxygen. Anaerobic respiration is the process of oxidation of molecules in the absence of oxygen, which produces energy in the form of adenosine tri-phosphate ATP.
Lactic Acid or Alcohol is produced 3. Then in the small intestine, enzymes from the pancreatic juice complete the breakdown of huge protein molecules into small molecules called amino acids. The two organs that extract oxygen from inhaled air and expel carbon dioxide in exhaled air.
Anaerobic respiration The term anaerobic means without air, which takes place without oxygen. Several things affect emptying of the stomach, the kind of food and the strength of muscle action of the emptying stomach and the small intestine.
Energy is also important to build different complex molecules e.We will write a custom essay sample on Physiology of Two Named Body Systems specifically for you.
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