Transcription of 10Organisms Respiration in
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10Organisms Respiration in
SCIENCE108 Respiration inOrganisms10 One day Boojho was eagerlywaiting to meet hisgrandparents who were comingto the town after a year. He was in a realhurry as he wanted to receive them at thebus-stop. He ran fast and reached thebus-stop in a few minutes. He wasbreathing rapidly. His grandmother askedhim why he was breathing so fast. Boojhotold her that he came running all the the question got stuck in his wondered why running makes aperson breathe faster. The answer toBoojho s question lies in understandingwhy we breathe. Breathing is a part ofrespiration. Let us learn about WHY DO WE RESPIRE?In Chapter 2 you learnt that allorganisms are made of smallmicroscopic units called cells. A cell isthe smallest structural and functionalunit of an organism. Each cell of anorganism performs certain functionssuch as nutrition, transport, excretionand reproduction.
respiration. Cellular respiration takes place in the cells of all organisms . In the cell, the food (glucose) is broken down into carbon dioxide and water using oxygen. When breakdown of glucose occurs with the use of oxygen it is called aerobic respiration. Food can also be broken down, without using oxygen. This is called anaerobic respiration.
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