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5 Cards in this Set
- Front
- Back
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How do H bonds impact the properties of H2O? (3) |
1 - Cohesion makes water flow 2 - Adhesion causes water to stick to other molecules 3 - H bonds cause water to be liquid 4 - H bonds have a high heat capacity, causing there to not be extreme temp fluctuations inside living organisms |
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Which part of the Water molecule is slightly negative and which is slightly positive? |
Slightly Negative - Oxygen Slightly Positive - Hydrogen |
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Properties of Arteries |
Thick Wall - Withstand High Blood Pressure Smooth Muscle - Alters Diameter of Lumen To Vary Blood Flow Elastic Fibers - Allows Walls To Stretch When Blood Is Pumped Into The Artery Smooth Layer Of Endothelial Cells - Low Friction Surface to Ease Blood Flow Narrow Lumen - For High Blood Pressure
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Properties of Capillaries |
Very Thin Wall - Allows rapid exchange of blood and tissue |
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Properties of Veins |
Thin Wall - Blood under low pressure Few Smooth Muscles or Elastic Fibers - No pulse of blood so no stretching and recoiling Wide Lumen - Low Blood Pressure + Large Volumes Act as Blood Resovouir Valves - Stop Backflow |
