Coursework.Info - Inspiration in an Instant

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Respiration takes place in all living things, all the time. It is a complex chemical process that oxidises food molecules, such as glucose, to carbon dioxide and water. The energy is trapped as ATP (Adenosine triphosphate) energy for living organisms to use when they need it. Examples that organisms can use ATP energy for; Growth, Repair, Movement, Biosynthesis, Locomotion, Transportation of molecules across cell membranes. Animals digest food to produce these molecules of glucose, lipids etc, which are then absorbed into the blood stream and transported around the body. Aerobic respiration is using oxygen to respire; this is mainly used by multi-cellular organisms. Oxygen is absorbed lungs, gills, or the body surface and is usually distributed around the body by the circulatory system. When the food molecules and oxygen are together within the cells, aerobic cell respiration can start. Organisms that use aerobic cell respiration need oxygen to live and produce carbon dioxide as a waste product;...

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