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Leader: Course: Instructor: Date: BIOL 212 Supplemental Instruction Iowa State University WORDS TO REMEMBER Nucleic Acid Cytosine Guanine Antiparallel Phosphodiester Hydrolysis Deoxyribonucleic Acid Uracil Adenine Hairpin Ester Condensation Lauren M BIOL 212 Kukday August 31,2016 Ribonucleic Acid Thymine Watson-Crick pairing Glycosidic linkage Peptide Dehydration 1. How many amino acids are there and what are their four main groups? 2. What does it mean when DNA is ‘directional’? And which direction is it going? 1. Which of the following bonds is correctly paired with its macromolecule? a. Peptide Bond – Proteins b. Glycosidic Linkage – Nucleic Acids c. Phosphodiester bond – Carbohydrates c. Peptide Bond – Nucleic Acids 2. Which of the following is not a difference between DNA and RNA? a. RNA is single stranded; DNA is double stranded b. DNA contains Thymine; RNA contains Uracil c. DNA contains an extra hydroxyl group that RNA does not have d. DNA is much less reactive than RNA 3. A nucleotide includes three main parts, what are they? 1060 Hixson-Lied Student Success Center 515-294-6624 [email protected] http://www.si.iastate.edu 4. If a certain strand of DNA contains 20% Cytosine, what percentage of Guanine would there be? Thymine? 5. What is this structure? What are components? 6. Which one is RNA and which one is DNA? Why? Draw a picture of a saturated and an unsaturated fatty acid (lipid). its DNA RNA What are their base pairs? What is the secondary structure? What is their tertiary structure? LOOKING AHEAD: Rank the following molecules from fastest to slowest in crossing a plasma membrane: Oxygen, Potassium, Glucose, Water. WHAT WE KNOW SO FAR: Macromolecule Protein Lipids Carbohydrate Nucleic Acid Monomer Reaction to make Bond between Reaction to break