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Gas Exchange at a Cellular Level By Holly 2 and Aaron.

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Presentation on theme: "Gas Exchange at a Cellular Level By Holly 2 and Aaron."— Presentation transcript:

1 Gas Exchange at a Cellular Level By Holly 2 and Aaron

2 O 2 and CO 2 in Blood G Oxygen is carried by hemoglobin. G Dissolved in the plasma. G Oxygen is carried by hemoglobin. G Dissolved in the plasma.

3 Respiration G Process of delivering O 2 to cells and carrying away CO 2. G Includes: G gas exchange in lungs G circulation of gases through bloodstream G transfer of gases at cellular level G Process of delivering O 2 to cells and carrying away CO 2. G Includes: G gas exchange in lungs G circulation of gases through bloodstream G transfer of gases at cellular level

4 Breathing Anatomy and Gas Exchange

5 Respiration Process G air goes into lung sacs G O 2 from the air enters the blood G CO 2 exits from the blood into the air G blood reaches the tissues G O 2 diffuses into cells G CO 2 enters the blood G blood circulates back to the lungs G air goes into lung sacs G O 2 from the air enters the blood G CO 2 exits from the blood into the air G blood reaches the tissues G O 2 diffuses into cells G CO 2 enters the blood G blood circulates back to the lungs

6 HowStuffWorks Gas Exchange "Gas Exchange." 17 February HowStuffWorks.com. 28 October 2008.http://health.howstuffworks.com/adam htm

7 Path of O 2 and CO 2 G Partial Pressure is exerted by a certain gas among a mixture of other gasses. G Partial pressure is a measure of how much of that gas is present in a mixture. G Gas diffuses in the direction with the least the partial pressure. G Simple Diffusion - Oxygen diffuses through the membrane and plasma, and is taken up by the RBC (Red Blood Cells.) G Partial Pressure is exerted by a certain gas among a mixture of other gasses. G Partial pressure is a measure of how much of that gas is present in a mixture. G Gas diffuses in the direction with the least the partial pressure. G Simple Diffusion - Oxygen diffuses through the membrane and plasma, and is taken up by the RBC (Red Blood Cells.) 132.gif

8 Magic School Bus – Works Out

9 Hindrances to gas exchange G When a blood vessel is damaged a clot forms. G Clotting can prevent gas exchange. G A lack of hemoglobin can hinder cellular respiration. G Hemophilia is caused by a lack of hemoglobin G When a blood vessel is damaged a clot forms. G Clotting can prevent gas exchange. G A lack of hemoglobin can hinder cellular respiration. G Hemophilia is caused by a lack of hemoglobin

10 Blood Clotting Platelet plug Collagen fibers Platelet releases chemicals that make nearby platelets sticky Clotting factors from: Platelets Damaged cells Plasma (factors include calcium, vitamin K) Prothrombin Thrombin FibrinogenFibrin Fibrin clot Red blood cell

11 Bibliography G Argyle, B. "Physiology of Gas Exchange." Blood Gas Text Mad Scientist Software. 27 Oct G Rice, Daniel. "Gas Exchange In Humans." The Biology Oct G Ritchison, Gary. Human Physiology - Respiration. 27 Oct G Starr, Cecie, and Ralph Taggart. Biology : The Unity and Diversity of Life. Belmont: Brooks/Cole, G "Gas Exchange." 17 February HowStuffWorks.com. 28 October 2008.http://health.howstuffworks.com/adam htm G G Argyle, B. "Physiology of Gas Exchange." Blood Gas Text Mad Scientist Software. 27 Oct G Rice, Daniel. "Gas Exchange In Humans." The Biology Oct G Ritchison, Gary. Human Physiology - Respiration. 27 Oct G Starr, Cecie, and Ralph Taggart. Biology : The Unity and Diversity of Life. Belmont: Brooks/Cole, G "Gas Exchange." 17 February HowStuffWorks.com. 28 October 2008.http://health.howstuffworks.com/adam htm G


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