MCAT REVIEW BIOLOGY EXAMKRACKERS CHAPTER 1 QUESTIONS AND ANSWERS

MCAT REVIEW BIOLOGY EXAMKRACKERS CHAPTER 1 QUESTIONS AND ANSWERS The solvent in which chemical reactions of living cells take place - Correct Answer️️ - Water Water is a small polar molecule that can ____ this ability allows it to maintain its liquid cohesive properties - Correct Answer️️ -Hydrogen Bond Water____s a molecule by surrounding the hydrophillic molecule with the opposite charge ex: Cl- attracts the positive Hydrogen in water. - Correct Answer️️ -solvate Macro-molecules of living cells are broken apart via ____ and are formed together via____ - Correct Answer️️ -hydrolysis, dehydration synthesis Any biological molecule with a low solubility to water and high solubility to non polar substances - Correct Answer️️ -Lipid List the major groups of lipids: - Correct Answer️️ -Fatty Acids, triaglyercerols, phospholipids, glycolipids, steroids, and terpenes. Long chains chains of carbons truncated at open end with a carboxylic acid. - Correct Answer️️ -Structure of Fatty Acid Constructed from a three carbon backbone called glycerol which is attached to 3 fatty acids, their function is to store energy. - Correct Answer️️ -Structure of Trigleyceol Specialize cells whose cytoplasm contains mainly triglycerides: - Correct Answer️️ - Adipocytes Describe the structure of a phospholipid: - Correct Answer️️ -Glycerol backbone, polar phosphate, one fatty acid, amphipathic structure. A type of phospholipid that has one or more carbohydrates attached to the 3 carbon glycerol backbone, instead of the phosphate group. - Correct Answer️️ -Glycolipid Four fused ring structure, hydrophobic - Correct Answer️️ -Steriods Chlyomicrons, VDL, LDL, and HDL are a type of: - Correct Answer️️ -Lipoprotein, a lipid surronded by phospholipids and apoproteins. Amino acids typically differ from each other only in their ___ - Correct Answer️️ -sides chains, also called R Built from a chain of amino acids linked together by a peptide bonds, also called polypeptides. - Correct Answer️️ -Proteins The specific sequence of amino acids in a polypeptide is call