Unit5 P4 Anat and Phys

474 Words2 Pages
Explain the physiology of two named body systems in relation to energy metabolism in the body In this assignment i am going to be describing the roles of energy in the body, with examples and then will be describing the physiology of the cardiovascular, respiratory and digestive systems in relation to providing the materials for energy metabolism to the cells. The role of energy ATP is the only type of energy the human body can use, although the body stores energy such as fat, glycogen, creatinine phosphate but they will be turned into ATP before the body can use it. There are also chemical, light, heats, sound and nuclear and these are all types of energy. We need energy to grow which builds new tissues, to repair our bodies, muscles need energy for movement; we need energy to help break food down, to send nerve impulses and to stay warm. How is energy produced? Aerobic respiration, during this a respiratory substances, glucose for example is split in the presence of oxygen and releases carbon dioxide and water. Many ATP molecules are produced which then release energy from the glucose. C6 H12 O6 + 6O2 = 6CO2 + 6H2O +36ATP Lactate is when glucose is converted during anaerobic respiration; the ATP yield will be low. C6 H12 O6 = 2C3 H6 O3 + 2ATP (lactate) This is a structure of ATP ATP contains sugar which is Ribose, a base which is Adenine and three phosphate groups. Biological systems transfer the energy in glucose to ATP because unlike glucose ATP releases its energy instantly in a single reaction and also the hydrolysis of ATP releases a small amount of energy, ideal for fuelling reactions in the body. Glucose is obtained from food; we eat pasta which is a carbohydrate which is then broken down into glucose by the digestive system. The process which breaks this down is known as catabolism, this is the breakdown of food components, breaking down
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