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Cellular Gas Exchange

Cellular Gas Exchange. Vanessa Chong, Jess Hansen, Sally Snickenberger. http://www.stemnet.nf.ca/~dpower/resp/exchange.htm. Cellular Respiration. Respiration: the breakdown of C 6 H 12 O 6 by O 2 The process is carried out by individual cells

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Cellular Gas Exchange

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  1. Cellular Gas Exchange Vanessa Chong, Jess Hansen, Sally Snickenberger http://www.stemnet.nf.ca/~dpower/resp/exchange.htm

  2. Cellular Respiration • Respiration: the breakdown of C6H12O6 by O2 • The process is carried out by individual cells • Every cell in the body is no more than 2 to 4 cells away from a capillary • Gas exchange takes place as a result of this process

  3. Why is Gas Exchanged Needed? • Body tissues needs O2 -function: oxygen allows for cellular respiration within the body that provide energy (ATP) -dispose of CO2, a waste product of cellular respiration • Blood in the body responds to this need and exchange takes place between blood in capillaries + body cells

  4. What Gas is Being Exchanged? • Opposite of the Gas Exchange that takes place in the lungs • CO2 in the body tissue is diffused into blood cells (based on concentration gradient) • O2 in the blood cells are diffused into body tissue (based on concentration gradient) • CO2 obtained from body tissue is disposed through exhalation • O2 is used to keep body issue alive + functioning http://people.eku.edu/ritchisong/301notes6.htm

  5. Concentration Gradient • O2 and CO2 are diffused down concentration gradient • Basic Diffusion: Move from a high concentration to a low one

  6. Works Cited • C, Starr. "The Basis of Gas Exchange."Biology: The Unity and Diversity of Life. 9th ed. 2001. • "Cellular Respiration." Revision Notes. 29 Oct 2008 <http://www.revision- notes.co.uk>. • "Gas Exchange." Royal Society of Chemistry. Royal Society of Chemistry. 29 Oct 2008 <http://www.rsc.org/education/teachers/learnnet/cfb/gas.htm>. • Rice , Daniel. "Gas Exchange in Human." Biology 2201 Home Page. Clarenville High School. 29 Oct 2008 <http://www.stemnet.nf.ca/~dpower/resp/exchange.htm>.

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