cell bio hw answers 1 - Cell Biology (BIO 320), Spring...

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Cell Biology (BIO 320), Spring 2009, Dr. Bushart Homework set #1 1. Compare and contrast the structure of a hockey stick, baseball bat, and lacrosse stick. How do their structures relate to their uses? All three are composed of similar materials (wood, plastics, metal, etc) and have an elongated shape with a region you hold on to. The baseball bat is simplest, being basically being a cylinder. A hockey stick has an angle at the end with a flat blade and the lacrosse stick has a cupped net at one end. All three interact with another object, but in slightly different ways. Baseball bats are just used to hit a ball in the air. Hockey sticks are used to move and control a disk on the ground (with the blade) while lacrosse sticks are used to catch and carry a ball (with the net). The end of each of the objects is directly related to how it interacts with this secondary object (puck or ball) in the game while all have handles for the players to grip. 2. Dissolving solid urea in water is an endothermic reaction (+ΔH) yet it still occurs spontaneously at room temperature. How would heating the water help this process?
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cell bio hw answers 1 - Cell Biology (BIO 320), Spring...

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