To determine: Acetone and propanal are which type of isomers.
Concept introduction: Isomers are defined as two or more molecules that have the same number of atoms but their arrangements are different. They differ in properties due to different atomic arrangements in molecules.
To determine: The number of asymmetric carbons that are present in glycerol phosphate, acetic acid, and glycine.
Concept introduction: Isomers are defined as two or more molecules that have the same number of atoms but their arrangements are different. They differ in properties due to different atomic arrangements in molecules.
To determine: Whether acetic acid, glycine, and glycerol phosphate exist as enantiomers.
Concept introduction: Isomers are defined as two or more molecules that have the same number of atoms but their arrangements are different. They differ in properties due to different atomic arrangements in molecules.
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Chapter 4 Solutions
CAMPBELL BIOLOGY MOD MASTERING (18 WEEK)
- Macmillan Learning Consider the structure of methionine in its +1 charge state. H₂N CH₂ CH₂ CH3 -OH Give the pK, value for the a-amino group of methionine. An answer within ±0.5 units is acceptable. Give the pK, value for the a-carboxyl group of methionine. An answer within +0.5 units is acceptable. Determine the isoelectric point (pl) for methionine. Give your answer to two decimal places. pK (−NH ) = pK₂ (-COOH) = pl = 5.74 2.28 Incorrect 9.21 Incorrect Attemptarrow_forwardDraw the structural for the lipid glyceryl tristearate and draw a dotted line about the portion that makes it soluble in nonpolar solvents like cyclohexane. Format BIU ...arrow_forwardCarbohydrates Instructions: (A) Show the conversion from Fischer to Haworth projections. (B) Draw and give the systematic names of the two (2) possible Haworth structures for the following monosaccharides. 1.D- Ribose 2. D- Galactose 3. D- Fructosearrow_forward
- I. Write a balanced chemical reaction, complete with chemical structures, to show the hydrolysis of iso-C to U. II. Draw the mechanism by which iso-G converts to its "minor tautomeric form complementary to U." You may propose either an acid or base catalyst. III. Draw chemical structures of the minor tautomeric form of iso-guanine (iso-G) and uracil (U), showing the non-covalent bonding (H-bonding) interactions between them.arrow_forwardUsing skeletal structures, draw the structure of a simple triacylglyceride containing 1 eicosapentanoic acid, 1 myristic acid and 1 oleic acid residues, with label.arrow_forwardCH;OH НО OH What is the name of this structure? OH OH alpha-D-gulopryranose O beta-L-gulofuransone O alpha-L-gulofuranose beta-D- gulopyranosearrow_forward
- Look at the structure of the disaccharide shown. Name the type of bond which is present. CH,OH H H он но CH2 Он H он H ÓH O B - 1, 4- N-glycosidic linkage O a- 1, 4- O-glycosidic linkage O B- 1, 4-0-glycosidic linkage O a- 1, 6- 0-glycosidic linkage O a- 1, 4- N-glycosidic linkagearrow_forwardModify isoleucine to show the predominant forms at pH 1, 7, and 13. Isoleucine has, values of 2.4 (carboxyl group) and 9.7 (amino group). Isoleucine at pH 7 Isoleucine at pH 1 CH3 CH₂ + H₂C CH +H₂N- C H Incorrect Isoleucine at pH 13 Incorrect H₂C H₂N- CH₂ | CH₂ CH c- C H 0 ĭ Incorrect H₂C +H₂N-arrow_forwardGiven the following disaccharide: Sugar frament A has what structure (ketal, acetal, hemiacetal, hemiketal)? The two monosaccharides are linked by what bond (α-1,3-glycosidic bond, β-1,3-fructosidic bond, β-1,3-glycosidic bond, α-1,3-fructosidic bond)arrow_forward
- For the tripeptide: methionylisoleucylcysteine (i) draw the structure of each tripeptide (ii) label the amide bonds in your structures (iii) identify the N-terminal and C-terminal amino acidsarrow_forward(a) Label all the O atoms that are part of a glycoside in rebaudioside A. Rebaudioside A, marketed under the trade name Truvia, is a sweet glycoside obtained from the stevia plant, which has been used for centuries in Paraguay to sweeten foods. (b) The alcohol or phenol formed from the hydrolysis of a glycoside is called an aglycon. What aglycon and monosaccharides are formed by the hydrolysis of rebaudioside A?arrow_forwardFind the structure of a tetrapeptide using the clues presented below. Draw the chemical formula of the peptide. * Full hydrolysis of the peptide yields equimolar amounts of alanine, aspartic acid, glycine, serine and ammonia. * Sanger analysis of the peptide yields 2,4- dinitrophenylalanine. (formula, equation?) * Carboxypeptidase enzyme doesn't hydrolyze the peptide. (Why?) * Partial hydrolysis of the peptide yields the following fragments, each with unknown order: Ser, Ala, Gly Gly, Asp NH3arrow_forward
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