Business Finance Homework Help/in Business & Finance homework help /by adminFlorida National University Biochemistry Multiple Choice Questions uestion 1 0.25 PointsThe primary difference between the amino acids commonly found in proteins is in their: number of asymmetric carbons. number of carbonyl groups. R or variable groups. number of potassium groups. number of phosphate groups. Question 2 0.25 PointsFigure 3-1 The products of the process in the accompanying figure are: enzymes. amino acids. representative of a glycoside linkage. molecules of glycerol. monosaccharides. Question 3 0.25 PointsUnlike lipids, hydrophilic functional groups typically contain ____ atoms, which make them more soluble in water. carbon oxygen nitrogen phosphate hydrogen Question 4 0.25 PointsFigure 3-2 In the accompanying figure, hydrophobic interactions would occur between the R groups of which two amino acids? 3 and 6 2 and 4 2 and 5 1 and 4 3 and 5 Question 5 0.25 PointsMatch the molecule with the appropriate word or phrase.PromptsSubmitted Answers Question 8most are nonpolarChoose a match Question 8celluloseChoose a match Question 8consist of monomers having 20 different typesChoose a match Question 8a beta-pleated sheet is one typical structureChoose a match Question 8monomers are joined by a glycosidic linkageChoose a match Question 8contains purines and pyrimidinesChoose a match Question 8may contain thymineChoose a match Question 8cholesterolChoose a match Question 6 0.25 PointsGlucose and fructose are ____ because they have identical molecular formulas but their atoms are arranged differently. structural isomers tertiary geometric isomers polar enantiomers Question 7 0.25 PointsCarotenoids are composed of isoprene subunits.__________________ True False Question 8 0.25 PointsAssume that the shaded portions of the molecule in the accompanying figure each represent different polypeptide chains. What does this represent? an amino acid a steroid hormone a carotenoid cellulose the quaternary structure of a protein Question 9 0.25 PointsWhen we know what kinds of ____ are present in an organic compound, we can predict its chemical behavior. functional groups triacylglycerols macomolecules enzymes proteins Question 10 0.25 PointsIdentify the levels of organization for protein molecules, and list the type(s) of bond(s) involved in establishing each structural level. Question 11 0.25 PointsIf you partially hydrogenate oleic acid, the resulting molecule most likely would: become soluble in water. lose a carbon atom. contain more double bonds. have a double bond changed from cis to trans. lose a carboxyl group. Question 12 0.25 PointsAn amino group is weakly basic and includes a(n) ____ atom covalently bonded to two hydrogen atoms. phosphate nitrogen sulfur oxygen carbon Question 13 0.25 PointsChitin is a polymer composed of N-acetyl glucosamine monomers.__________________ True False Question 14 0.25 PointsWhat carbohydrate energy storage molecule is found in animal liver and muscle cells? cellulose starch glycogen a fatty acid cholesterol Question 15 0.25 PointsFigure 3-1 What chemical process is represented in the accompanying figure? condensation dehydration synthesis protein synthesis denaturation hydrolysis Question 16 0.25 PointsHow many carbon sugars are there in a pentose sugar? six eight two three five Question 17 0.25 PointsAnalysis of a certain polymer shows that it contains phosphate groups, ribose groups, and pyrimidines. Based on this information, what statement best describes this compound? It is RNA. It is an inorganic compound. It is a polypeptide. It is DNA. It is cylic AMP. Question 18 0.25 PointsWhat is the purpose of regulatory proteins? To defend against foreign invaders To store nutrients To catalyze a specific chemical reaction To strengthen and protect cells and tissues To control the expression of specific genes Question 19 0.25 PointsAmyloplasts are organelles that store: starch. DNA. lipids. protein. fat. Question 20 0.25 PointsWhat type of protein accelerates the thousands of different chemical reactions thattake place in an organism? amino acid transport protein enzyme regulatory protein protective protein Question 21 0.25 PointsWhat group of molecules is represented in this structure? polysaccharides phospholipids structural proteins triacylglycerols polypeptides Question 22 0.25 PointsSickle cell anemia is a genetic disease caused by the replacement of one amino acid in the hemoglobin molecule. This replacement changes the shape and function of the hemoglobin protein in dramatic ways, which can sometimes be lethal. How can the substitution of one amino acid lead to such drastic results? Question 23 0.25 PointsA molecule of a saturated triacylglycerol contains: alternating single and double bonds between carbons in the fatty acid chains. the maximum number of triple bonds between carbons in the fatty acid chains. the maximum number of double bonds between carbons in the fatty acid chains. the maximum number of hydrogen atoms in the fatty acid chains. fatty acid chains with both amino and carboxyl groups. Question 24 0.25 PointsIf tyrosine and isoleucine undergo condensation, where does the new bond form? Between carbon of the carboxyl group and the hydrogen of the amino group Between carbon of the carboxyl group and the nitrogen of the amino group Between carbon of the carboxyl group and the hydrogen of the R group Between carbon of the R group and the nitrogen of the amino group Between oxygen of the R group and the hydrogen of the amino group Question 25 0.25 PointsIdentify three functions of proteins other than enzymes and briefly discuss or describe each. Question 26 0.25 PointsA phosphate group is weakly acidic.__________________ True False Question 27 0.25 PointsFigure 3-3What type of connection exists between the atoms at the point labeled 1 in the accompanying figure? peptide bond hydrogen bond glycoside linkage disulfide bond phosphodiester linkage Question 28 0.25 PointsFigure 3-2 In the accompanying figure, ionic bonds would form between the R groups of which amino acids? 2 and 4 1 and 3 3 and 6 4 and 6 3 and 5 Question 29 0.25 PointsA beta-pleated sheet is an example of a protein’s tertiary structure.__________________ True False Question 30 0.25 PointsA(n) essential amino acid is one that the body cannot synthesize in sufficient amounts.__________________ True False Question 31 0.25 PointsWhat substance is removed during a condensation reaction? a polymer a dimer water a carboxyl group a hydrocarbon Question 32 0.25 PointsFigure 3-3The molecular fragment (the G, U and A’s) represented in the accompanying figure is: RNA. ATP. DNA. a polysaccharide. a nucleotide. Question 33 0.25 PointsThe following amino acid would be characterized as ____ based on the chemical properties of its side chain. electrically charged nonpolar acidic basic hydrophilic Question 34 0.25 PointsWhat is the purpose of molecular chaperones? To assist the folding of other molecular proteins To transfer an amino acid To straighten other molecular proteins To attach a carboxyl group To strengthen the tertiary structure of a protein Question 35 0.25 PointsWhat organic molecules is the primary structural component of cell membranes? glycogen cellulose phospholipids disaccharides adenine triphosphate Question 36 0.25 PointsHow many electron pairs are shared between carbon 2 and 3 in the accompanying figure? four three one one and a half two Question 37 0.25 PointsAt which level of protein structure are peptide bonds most important? quaternary tertiary primary secondary globular Question 38 0.25 PointsWhen a nucleic acid undergoes hydrolysis, the resulting subunits are: nucleotides. amino acids. monosaccharides. fatty acids. carotenoids. Question 39 0.25 PointsThe helical coil shape of an α-helix fibrous protein provides what type of property to that protein? elasticity water retention heat tolerance rigidity strength Question 40 0.25 PointsCompare and contrast the structure, physical characteristics, and biological functions of two of the following: fats, steroids, and phospholipids. https://bestqualitywriters.com/wp-content/uploads/2020/09/logo-1-300x41.png 0 0 admin https://bestqualitywriters.com/wp-content/uploads/2020/09/logo-1-300x41.png admin2022-01-10 21:45:052022-01-10 21:45:05Business Finance Homework Help