ap bio ch3

ap bio ch3 - NAME_PERIOD_DATE_ Unit 1: The Chemistry of...

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Unit 1: The Chemistry of Life AP Biology – Chapter 3 – Water and the Fitness of the Environment – Pages 47 – 56 Overview: The Molecule that Supports all of Life 1. What percentage of cells is made up of water? Why is water important in sustaining life? 70-95%; important because H2O molecules participate in a lot of chem. Reactions needed to sustain life. Concept 3.1: Polarity 2. What is a polar molecule? Unequal distribution of e’s. Concept 3.2: Four emergent properties of water 4. Compare cohesion to adhesion . Cohesion = binding together of like molecules, often by Hbonds Adhesion = attraction between different kinds of molecules 5. Relate cohesion and adhesion to water transport in plants. 6. Define: a. Kinetic energy b. Heat c. Temperature d. Calorie e. Kilocalorie f. Joule g. Specific heat 7. Explain how evaporative cooling prevents terrestrial organisms form overheating. 8.
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ap bio ch3 - NAME_PERIOD_DATE_ Unit 1: The Chemistry of...

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