Concept explainers
(a)
Interpretation: The difference between amylopectin of starch and glycogen in terms of the given property has to be stated.
Concept introduction: Amylopectin is a polysaccharide component of starch. It is a branched glucose
(a)

Answer to Problem 7.149EP
The type of glycosidic linkage present in amylopectin and glycogen is same, that is both have
Explanation of Solution
Amylopectin is a branched polysaccharide of starch. Only one type of monosaccharide, glucose is present in amylopectin. The glycosidic linkages present in amylopectin are
Glycogen is a branched glucose polysaccharide. In humans and animals, it stores glucose. When excess of glucose is present in the human body, it is stored as glycogen. In glycogen, both
Hence, the type of glycosidic linkage present in amylopectin and glycogen is same, that is both have
(b)
Interpretation: The difference between amylopectin of starch and glycogen in terms of the given property has to be stated.
Concept introduction: Amylopectin is a polysaccharide component of starch. It is a branched glucose polymer. It accounts about
(b)

Answer to Problem 7.149EP
The type of monosaccharide monomer units present in amylopectin and glycogen is same, that is both have glucose as its monomer units.
Explanation of Solution
Amylopectin is a branched polysaccharide of starch. Only one type of monosaccharide, glucose is present in amylopectin. The glycosidic linkages present in amylopectin are
Glycogen is a branched glucose polysaccharide. In humans and animals, it stores glucose. When excess of glucose is present in the human body, it is stored as glycogen. In glycogen, both
Hence, the type of monosaccharide monomer units present in amylopectin and glycogen is same, that is both have glucose as its monomer units.
(c)
Interpretation: The difference between amylopectin of starch and glycogen in terms of the given property has to be stated.
Concept introduction: Amylopectin is a polysaccharide component of starch. It is a branched glucose polymer. It accounts about
(c)

Answer to Problem 7.149EP
The degree of branching is more in glycogen than amylopectin.
Explanation of Solution
Amylopectin is a branched polysaccharide of starch. Only one type of monosaccharide, glucose is present in amylopectin. The glycosidic linkages present in amylopectin are
Glycogen is a branched glucose polysaccharide. In humans and animals, it stores glucose. When excess of glucose is present in the human body, it is stored as glycogen. In glycogen, both
The difference between amylopectin and glycogen is based on the presence of glucose units in between the branches and the total number of glucose units present in the carbohydrate. There is about three times more branching in glycogen than amylopectin. There are about 1000,000 units of glucose present in glycogen while in amylopectin 10,000 units of glucose are present.
Hence, the degree of branching is more in glycogen than amylopectin.
(d)
Interpretation: The difference between amylopectin of starch and glycogen in terms of the given property has to be stated.
Concept introduction: Amylopectin is a polysaccharide component of starch. It is a branched glucose polymer. It accounts about
(d)

Answer to Problem 7.149EP
The more number of units are present in glycogen than amylopectin.
Explanation of Solution
Amylopectin is a branched polysaccharide of starch. Only one type of monosaccharide, glucose is present in amylopectin. The glycosidic linkages present in amylopectin are
Glycogen is a branched glucose polysaccharide. In humans and animals, it stores glucose. When excess of glucose is present in the human body, it is stored as glycogen. In glycogen, both
The difference between amylopectin and glycogen is based on the presence of glucose units in between the branches and the total number of glucose units present in the carbohydrate. There is about three times more branching in glycogen than amylopectin. There are about 1000,000 units of glucose present in glycogen while in amylopectin 10,000 units of glucose are present.
Hence, more number of units are present in glycogen than amylopectin.
Want to see more full solutions like this?
Chapter 7 Solutions
EBK ORGANIC AND BIOLOGICAL CHEMISTRY
- Can I please get help with #3 & 4? Thanks you so much!arrow_forwardA solution consisting of 0.200 mol methylbenzene, C,H,CH,, in 500. g of nitrobenzene, CH,NO₂, freezes at 3.2°C. Pure nitrobenzene freezes at 6.0°C. The molal freezing point constant of nitrobenzene is _ °C/m. a) 2.8 b) 3.2 c) 5.6 d) 7.0 e) 14.0arrow_forwardBelow is the SN1 reaction of (S)-3-chlorocyclohexene and hydroxide ("OH). Draw the missing curved arrows, lone pairs of electrons, and nonzero formal charges. In the third box, draw the two enantiomeric products that will be produced. 2nd attempt Please draw all four bonds at chiral centers. 0 D Draw the missing curved arrow notation. Add lone pairs of electrons and nonzero formal charges. + 노 V 1st attempt Feedback Please draw all four bonds at chiral centers. See Periodic Table See Hint F P 41 H Br See Periodic Table See Hint H Larrow_forward
- How close are the Mulliken and Pauling electronegativity scales? (a) Now that the ionization energies and electron affinities have been defined, calculate the Mulliken and Pauling electronegativities for C, N, O and F. Compare them. (Make the necessary adjustments to the values, such as dividing the ionization energies and electron affinities by 230kj/mol) (b) Plot both sets of electronegativities against atomic number (use the same graph). (c) Which scale depends most consistently on position in the Periodic Table?arrow_forwardBelow is the SN2 reaction between 2-bromopropane and iodide (I). Draw the mechanism arrows in the first box to reflect electron movements. In both boxes, add lone pairs of electrons and nonzero formal charges. 4th attempt Feedback 3rd attempt Feedback 1 -Br H :Bri :Br: ili See Periodic Table See Hint ini See Periodic Table See Hintarrow_forwardWhen 4-chloro-1-butanol is placed in sodium hydride, a cyclization reaction occurs. 3rd attempt 2 HO NaH CI D Draw the curved arrow notation to form the intermediate. 4 2 H₂ See Periodic Table See Hint =arrow_forward
- Sketch, qualitatively, the potential energy curves of the N-N bond of N2H4, N2 and N3- graph. Explain why the energy at the minimum of each curve is not the same.arrow_forward(a) Show that the lattice energies are inversely proportional to the distance between ions in MX (M = alkali metal, X = halide ions) by plotting the lattice energies of KF, KCl, and KI against the internuclear distances, dMX. The lattice energies of KF, KCl, and KI are 826, 717, and 645 kJ/mol, respectively. Does the correlation obtained correlate well? You will need to use a standard graphing program to construct the graph (such as a spreadsheet program). It will generate an equation for the line and calculate a correlation coefficient. (b) Estimate the lattice energy of KBr from your graph. (c) Find an experimental value for the lattice energy of KBr in the literature, and compare this value with the one calculated in (b). Do they agree?arrow_forwardShow the curved arrow mechanism and both products for the reaction between methyl iodide and propoxide. 1st attempt NV H 10: H H 1 Add the missing curved arrow notation. H + See Periodic Tablearrow_forward
- First I wanted to see if you would mind checking my graphs behind me. (They haven't been coming out right)? Second, could you help me explain if the rate of reaction is proportional to iodide and persulfate of each graph. I highlighted my answer and understanding but I'm not sure if I'm on the right track. Thank you in advance.arrow_forwardThe heat of combustion for ethane, C2H6C2H6 , is 47.8 kJ/g. How much heat is produced if 1.65 moles of ethane undergo complete combustion?arrow_forwardReview of this week's reaction: H2NCN (cyanamide) + CH3NHCH2COOH (sarcosine) + NaCl, NH4OH, H2O ----> H2NC(=NH)N(CH3)CH2COOH (creatine) Q7. Draw by hand the reaction of creatine synthesis listed above using line structures without showing the Cs and some of the Hs, but include the lone pairs of electrons wherever they apply. (4 pts) Q8. Considering the Zwitterion form of an amino acid, draw the Zwitterion form of Creatine. (2 pts) Q9. Explain with drawing why the C—N bond shown in creatine structure below can or cannot rotate. (3 pts)arrow_forward
- General, Organic, and Biological ChemistryChemistryISBN:9781285853918Author:H. Stephen StokerPublisher:Cengage LearningOrganic And Biological ChemistryChemistryISBN:9781305081079Author:STOKER, H. Stephen (howard Stephen)Publisher:Cengage Learning,Introduction to General, Organic and BiochemistryChemistryISBN:9781285869759Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar TorresPublisher:Cengage Learning
- World of Chemistry, 3rd editionChemistryISBN:9781133109655Author:Steven S. Zumdahl, Susan L. Zumdahl, Donald J. DeCostePublisher:Brooks / Cole / Cengage LearningChemistry for Today: General, Organic, and Bioche...ChemistryISBN:9781305960060Author:Spencer L. Seager, Michael R. Slabaugh, Maren S. HansenPublisher:Cengage LearningChemistry In FocusChemistryISBN:9781305084476Author:Tro, Nivaldo J., Neu, Don.Publisher:Cengage Learning





