Differentiate between cellular respiration and breathing.
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Answer:
Breathing vs Cellular Respiration
Though, in physiology, there is a well defined difference between breathing and cellular respiration, many people used think that respiration and breathing are two equal terms to describe the oxygen intake and carbon dioxide elimination that take place in the respiratory system. In physiology, respiration has an extensive meaning. In this article, we focus on the difference between the two steps of the respiration process namely; breathing and cellular respiration. Respiration is a basic process of life and common to all plants and animals in the world. It is mainly characterized by the utilization of food molecules to produce energy and exchange of gasses. Based on the oxygen requirement, respiration is broadly categorized into two types; (a) aerobic respiration, which requires oxygen, and (b) anaerobic respiration, which does not require oxygen.
What is Cellular Respiration?
As the name implies, the cellular respiration takes place within the cells of organisms. Hence, it is often referred to as internal respiration. Cellular respiration involved biochemical processes. In this process, food molecules are decomposed by using oxygen to form energy (ATP) which is essential for all cellular activities. While deriving energy, water and carbon dioxides are produced as by-products and carbon dioxide is expelled from the body as a waste through breathing. Because of the release of energy, cellular respiration is known as a metabolic process. Cellular respiration can be measured by taking the ratio of CO2 produced to O2 consumed. This ratio is called the respiratory quotient (RQ) and it varies based on the foodstuff consumed.
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Answer:
respiration- a process in living organisms involving the production of energy, typically with the intake of oxygen and the release of carbon dioxide from the oxidation of complex organic substances.
breathing- Breathing (or ventilation) is the process of moving air out and in the lungs to facilitate gas exchange with the internal environment, mostly to flush out carbon dioxide and bring in oxygen.
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