ASU BIO 181 Exam 1 Questions and Answers 100% Verified

ASU BIO 181 Exam 1 Questions and Answers 100% Verified Which six elements are most important for the survival of life? - answerH, C, N, O, P, S The shared biochemistry of all life is often considered evidence for: - answerShared common descent of all life on earth. Water has which property or properties? - answerHydrophilic Forms hydrogen bonds Ocean acidification is resulting due to - answerGlobal release of CO2 through the use of fossil fuels Which other element (besides Carbon) is often suggested as having potential for life - answerSilicon Which kind of organic compound is pictured? - answerAmino acid What kind of molecule is pictured? - answerRNA Which kind of organic compound is pictured? - answerphospholipid All things being equal which fatty acid will have a lower melting point? - answerShort-chain fatty acid What kind of molecule is pictured? - answerpolypeptide Saturated or unsaturated fat? - answersaturated(top) Which type of molecular interaction is strongest? - answerCovalent bond Water is a... - answerpolar molecule A low pH is typical of - answeracids What element is called the 'backbone of life'? - answercarbon DNA or RNA? - answerDNA This amino acid is capable of forming disulfide bridges - answerCysteine Name this compound... - answerCholesterol Exothermic or Endothermic? - answerexothermic Which level of protein structure? - answerQuaternary The name of a conceptual model for enzyme action - answerLock and Key, Induced Fit Which level of protein structure is shown in the picture below? - answerPrimary Which level of protein structure is shown in the picture below for the two proteins? - answertertiary Would the subsitution (due to a mutation) of alanine (hydrophobic amino acid) for serine (a polar and hydrophobic amino acid) have a large or small effect on the structure of a protein? - answerYes, likely a large effect. The substitution of two chemically very different amino acids could have a large effect on protein structure. What type of chemical bond is important for stabilizing alpha-helix or Beta-sheets between backbone atoms of amino acids in close proximity to one another? - answerHydrogen bonds If a protein is subject to changes in temperature, pH, or exposure to chemicals this may result in: - answerDenaturation The image below shows what type of chemical compound? - answerTriacylglycerol The image below shows what kind of compound? - answerLipid A sterol, specifically cholesterol What kinds of structure will the following compound, a phospholipid, form in a watery environment? - answerMembrane Micelle Liposome With the complementarity of nucleic acids in mind (in DNA strands) answer the following question. A particular stretch of DNA is sequenced and found to be 40% Guanine. What percentage will be Adenine? - answer10% Which of the following macromolecules is most likely to form into a double helix? - answerNucleic Acid: DNA Which side will generally have a greater amount of matter present? The reactants or the products? - answerBoth will be e