UWRF bio 240 Final Exam Study Guide Questions and Answers 2024 Correctly done

The central dogma of molecular biology refers to transcription and translation. Transcription completes the process using DNA's to make_____whereas translation is using_____to make proteins. - RNA's, RNA's Cell membrane is formed by two layers of phospholipids. Therefore, the thickness of cell membrane is within the size range of - Macromolecules most elements are neutral because they have equal number of electrons and protons. Normal carbon 12C, has 6 electrons, 6 proton, and 6 neutrons, but the rare carbon form 13C, has an additional neutron Which of the following is true? a. its molecular mass is 7 instead of 12 b. it carries a positive charge c. it can form 5 covalent bonds d. it weighs heavier than 12 C - C. It can form 5 covalent bonds Covalent bond is formed when two elements - share electrons Which of the following statement is false about polar molecules? a. it typically happens when a H forms a covalent bond with O or N b. they carry partial charges c. they are also called amphipathic d. they are typically hydrophobic - C. They are also called amphipathic Hydrophobic repulsion is likely to occur between a. H2O and H2O b. Na+ and Clc. vitamin D and oil d. H20 and CH4 (methane) - A. H2O and CH4 (methane)isomers are molecules that a. Have the identical formula but different chemical structures b. have the identical chemical structure but different function c. have similar chemical structure but the same function d. have different chemical structure but the same function - A. Have the identical formula but different chemical structures monosaccharides combine to form a disaccharide, or to break down a disaccharide into two monosaccharides - both need H2O Carbohydrates carry out many functions for the cell. Which of the following is a correct match? a. Energy storage-proteoglycan b. lubrication- starch c. enhancing white blood cell function-Beta-glucan d. Structural function-starch - C. Enhancing white blood cell function- beta-glucan