TOPICS FOR EXAMINATION 2 - Biology 1406, REESE, et al 10e KNOW AND UNDERSTAND ALL TOPICS AS A FUNCTION OF THE CONCEPT CHECK HEADINGS IN YOUR TEXT!!(modified from exam topics sheets developed by Dr. D. Schwartz) CHAPTER 5 (Remember only the Lipids and Nucleic Acids on this one) What is a polymer? What is a monomer? What is dehydration synthesis? What is hydrolysis? WHAT IS THE DEFINITION OF A BIOLOGICAL MACROMOLECULE? WHAT ARE THE FUNCTIONS OF CARBOHYDRATES? OF LIPIDS? OF PROTEINS? OF NUCLEIC ACIDS? Be able to recognize and understand the properties of all monomers used to build biological macromolecules. What is a fat? Know the general chemical structure of an amino acid. Which carbon in an amino acid is the alpha carbon? What is an R group, and why is it important? What are peptide bonds, glycosidic bonds? Be able to recognize these bonds when you see them. What are the four levels of structural organization in proteins? What does each level mean? What could a change in protein structure at any of these levels lead to, concerning protein activity? How do purines and pyrimidines base pair in DNA and RNA? What are the names of the purines? What are the names of the pyrimidines? How does DNA replicate? Why are complementary bases important? What type of lipid is most important in cell membranes? CHAPTER 6 Know the major differences between prokaryotic and eukaryotic cells. Know and understand all components and organelles of plant and animal cells. Know the major differences between plant and animal cells. Know the major differences between mitochondria and chloroplasts. Be able to trace the movement of membrane as it travels through the eukaryotic cell. CHAPTER 7 Know the macromolecules that are present in the plasma membrane and of which molecules it is composed. What are the major functions of membrane proteins? Know the fluid mosaic model of the plasma membrane thoroughly! Include ECM, cytoskeleton, and carbohydrate components. What is active transport and and how does it occur? What is endocytosis, and what are some examples of it? What is exocytosis? What is the most abundant lipid in the plasma membrane? How are plasma membranes in animal cells anchored and given shape and structure? Which types of molecules move best through the plasma membrane? Which types of molecules pass through a cell membrane most easily? Which types of molecules move the most poorly through the plasma membrane? Know the characteristics of the sodiumpotassium pump. What is the purpose of the glycoproteins which are found on the external surface of the plasma membrane. WHAT IS THE DEFINITION OF DIFFUSION? OF OSMOSIS? How is facilitated diffusion different from diffusion? KNOW AND UNDERSTAND WHAT IS MEANT BY TONICITY, HYPERTONIC, HYPOTONIC, ISOTONIC, TURGID, FLACCID, PLASMOLYSIS, PLASMOLYZED, CRENATION, CRENATED, HEMOLYSIS, HEMOLYZED. KNOW AND UNDERSTAND THE CONDITIONS UNDER WHICH EACH OF THESE WOULD OCCUR IN PLANT AND ANIMAL CELLS. You may also have questions concerning the movement of solutes and solvent across a selectively (differentially) permeable membrane.