BIO 110 FINAL EXAM|VERIFIED WITH GUARANTEED ACCURATE ANSWERS

BIO 110 FINAL EXAM BIO 110 FINAL EXAM|VERIFIED WITH GUARANTEED ACCURATE ANSWERS The Scientific Method - Accurate AnswerObservations Ask questions Hypothesis to answer the question→ new proposition that is compatible with observations and facts already known; must result in testable predictions Make predictions based on your hypothesis Design experiment to test hypothesis Designing Controlled Experiments - Accurate AnswerManipulate one variable at a time Control group:exposed to the same conditions as the experimental group except for one independent variable Experimental group: exposed to the independent variable hydrophobic effect - Accurate Answerhighly ordered H2O molecules form "cages" around the hydrophobic alkyl chains if individual lipids -entropically driven exclusion from water - clusters of lipid molecules ; only lipid portions of the edge of the cluster force the ordering of water;fewer H2O molecules are ordered , and entropy is increased. -its is not an attraction between lipids that makes them cluster together in water, but the interactions of water molecules to other water molecules. how would membranes be affected if water were nonpolar? - Accurate Answerwithout the effect no membrane would exist because there would be nothing keeping the lipids together , because there is no polarity and no structure would form. Roles of water - Accurate Answer-transport protons (acceptor) -breaking (hydrolysis) covalent bonds(ATP) -making(condensation) covalent bonds -water can ionize (donate protons) -H2O + H2O → H2O+ +OH- -the dipole nature of water creates the hydrophobic effect - can be crucial for the structure and function of an active site of an enzyme