Leader: Course: Instructor: Date: Chapter 3: Organic Molecules Supplemental Instruction Iowa State University Adam Biology 211 Emeka Kemdirim 1. There are two types of isomers: Name them and give an example of each. 2. Polysaccharides: o When many ________ are linked together to form long polymers, polysaccharides are made. o There are three polysaccharides that you should be aware of: o How do these three polysaccharides differ? Glycogen’s higher degree of _________ contributes to its ________ in animal tissue. Because extensive branching creates a more _______ structure, which many ________ side groups have access to water and so hydrogen bond can form. Starch is less _______ and thus less _______. Cellulose provides a ________ role cause no there is no _________. This prevents cellulose from being __________ for ATP. Cellulose is important for the _____ _____ in plants. If we eat cellulose it becomes indigestible plant matter or fiber. We don’t have the right enzymes. o Some polysaccharides (guess which two) are used to store ______. o How can you get what’s stored out? o Two other notable polysaccharides are: Chitin Glycosaminoglycan- Supplemental Instruction 1060 Hixson-Lied Student Success Center 294-6624 www.si.iastate.edu 3. Lipids o Lipids are hydro-____, composed mostly of what two elements? o A triglyceride is a type of lipid composed of what? o Each _____ group from glycerol links to _____ group from a fatty acid by the removal of water to make what type of bond? o The fatty acid chains can differ with respect to each other. Most chains have a _____ number of carbons. o Two main types of fatty acids. One that has carbons single bonded to each other which would be what type of fat? And another with 1 or more Carbon Carbon double bonds, what is this fat? o Why do unsaturated fats have a lower melting point than saturated? o Triglycerides store a lot of _______. o Phospholipids are another lipid, most important for what? o Steroids are another type of lipid- with ____ fused rings, and are hydro-______. 4. Protein o Made up of monomers of ______. o Contain what elements? o AA Structure --- o Amino acids categorized whether side chain is _______, _______ or _______. o Linking AA: COOH group of one amino acid joins NH2 group of another amino acid, forming a ______ bond. o List all the factors affecting protein structure: 5. Nucleic Acid o Nucleic Acid is a polymer of _______. o Two classes of Nucleic Acid: List them o DNA ______ genetic information coded in the sequence of their monomer building blocks.RNA _______ this information into introduction for linking specific sequence of amino acids. o Nucleotide are made up of three parts: o DNA nucleotides are held together by ________ linkers between adjacent sugar and phosphate molecules. o DNA nucleotide has 4 bases: List which are purines and which are pyrimidine’s. List which bond with which. Tell me how they are bonded together, and tell me how many bonds are between each set.