BIOL 205 Midterm: Exam 3 Study Guide
30 Jul 2018
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Categorize sugars based on chemical differences and explain how these impact function. Oligosaccharide- short chains of monosaccharides joined together o. Compare and contrast sugar polymerization with nucleotide and amino acid polymerization. Oh and phosphate group come together and form an o bond, and h2o breaks off. Describe the cellular functions of carbohydrates and predict how alterations in polymerization will affect their function. Categorize lipids based on their chemical properties o. Contrast the relative energy potential of a variety of polysaccharides and other organic molecules. Fats- triglycerides 3 tails/ fatty acids joined to glycerol by o. Steroids- 27 carbons (not small) nonpolar- easy to cross membrane. Phospholipids- glycerol + phosphate +choline hydrophobic tails. Predict the relative permeability of a membrane to a given molecule. Easy to cross hard to cross membrane. Assess which direction molecules will move across a membrane based on a given gradient.
