“Explain the Physiology of Two Named Body Systems in Relation to Energy Metabolism in Your Body”

1390 Words Apr 24th, 2014 6 Pages
Anatomy and Physiology for Health and Social Care Assignment 3

Body Systems and their role in Energy Metabolism and The Inter-relationship between Body Systems

Anatomy and Physiology for Health and Social Care Assignment 3

Body Systems and their role in Energy Metabolism and The Inter-relationship between Body Systems

“Explain the physiology of two named body systems in relation to energy metabolism in your body” Cardiovascular system The cardiovascular system has many different functions. The four major functions are to transport nutrients, gases and waste products around the body, to protect the body from infection and blood loss, to help the body maintain a constant body temperature and to help the body
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Catabolism is the set of metabolic pathways that breaks down molecules into smaller units to release energy. In catabolism, large molecules such as lipids, nucleic acids and proteins are broken down into smaller units such as fatty acids and amino acids. When food is broken down energy is released as the foods molecules’ bonds are broken. Then this energy is used to reform the bonds that have been broken so that ATP can be recreated. More energy can be obtained when oxygen is present and the process proceeds on aerobically. The aerobic production of ATP occurs inside the mitochondria in cells. The broken down food molecules then enters the blood stream. Blood is a liquid connective tissue as it is made up of red and white living cells. Oxygen is transported in the red blood cells which are attached to a protein called haemoglobin. Nutrients including glucose are dissolved in the plasma. Plasma is a mixture of water, sugar, fat, proteins and salts. The main function of the plasma is to transport blood cells throughout your body along with nutrients, waste products, antibodies, clotting proteins and chemical messengers such as hormones that help maintain the body’s fluid balance. The red blood cells also carry iron which attracts oxygen. Our cells use oxygen to make energy. Iron is also needed to keep the immune system healthy and help brain cells. Without your heart, blood vessels and blood you wouldn’t be able to get the…