PHGY 170 Study Guide - Final Guide: Rna Polymerase Ii, Rna Polymerase I, Rna Polymerase Iii
23 Nov 2016
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Document Summary
Introduction: cell theory is the foundation of biology; it describes cell properties and their roles as building blocks of life. All living organisms are composed of one or more cells. The cell is the basic unit of structure and organization in organisms. Yes: cell size, number of cells, cell division, reproduction. Sexual or asexual: hydrophilic molecules attract water and other hydrophilic molecules, but repel hydrophobic molecules, hydrophobic (carbon-based) molecules are large & nonpolar. Such properties allow compartmentalization: water is essential for all eukaryotic cell life. Water is liquid at room temperature, due to its high heat of vaporization and specific heat index. Water is polar; therefore, hydrogen bonds form between partially charged atoms of opposite polarity. Water is denser as a liquid, not a solid; this is why ice floats above the water in lakes and oceans. Water has a high specific heat capacity (the heat needed to change the temperature of 1g by 1oc).
