HOHCH2OHDHОНHالحزنОНCH2OHОНHОН IWhich of the following statements correctly describes this structure?(A) The monomer units are bonded by beta 1-2 glycosidic linkage.BThe monomer units are bonded by alpha 1-2 glycosidic linkage.The monomer units are bonded by alpha 1-4 glycosidic linkage.The monomer units are bonded by beta 1-4 glycosidic linkage.HCH2OHHОНHОНHОН

The sugars often contain alcohol and carbonyl functional groups and the intramolecular hemiacetal…

Answered: H ОН CH2OH D H ОН H 0 البلاد - ОН H…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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Name the types of glycosidic bonds found in this olygomer, from left to right (from 1 to 3) CH 20H CH 2OH CH 2OH но OH OH OH OH OH OH O alpha1-1, alpha1-4, n O alpha1-4, alpha1-4, n O alpha1-4, beta1-2 O alpha1-4, beta1-4 O beta1-4, alpha 1-4 « Previous Next Not saved Submit Quiz
Imagine a trisaccharide that has D-Altrose, D-Gulose, and D-Ribose. D-Altrose is bonded to D-Gulose in an α(1→4) glycosidic bond and D-Ribose is bonded to D-Altrose in an α(1→6) glycosidic bond. Draw the imaginary trisaccharide using Haworth projection with the appropriate representation of each monosaccharide.
Consider the structure of the tripeptide (in its fully protonated form) below. H H H + I || H₂N-C-C-N-C-C-N-C-C-OH 1 I | H CH₂ H CH₂ CH₂ T C=O OH AA1 0=0 || HC-CH3 CH3 AA2 AA3 0=C 1. Give the sequence of the tripeptide using the ONE-LETTER DESIGNATION (UPPERCASE LETTER) with NO spaces and symbols between each letter. 2. How many ionizable groups are there in the tripeptide? Give the numerical value (e.g., 10 not ten). • pH 10: {Choices: -2, -1, 0, +1, +2} 3. Which amino acid residue has one ionizable group left upon forming the tripeptide? {Choices: AA1, AA2, AA3, none, all} 4. Give the net charge of the dominant structure of the tripeptide at the given pH values. The pK, values of the amino acids are given in Table 1. • pH 4: {Choices: -2, -1, 0, +1, +2}
Raffinose (see prev. question for structure) is not digestible by humans yet is found in foods we eat all the time like beans, cabbage, brussels sprouts etc. What 2 human digestible compounds can Raffinose be broken down into? Just as a side note, Raff is NOT digestible by us, but our helpful gut bacteria break it down for us into the 2 compounds that are the answer to this question. O a-D-glucose O B-D-fructose sucrose a-D-galactose Lactose maltose
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Convert each of the following chair conformations to an open-chain from and to a Fischer projection. Name the monosaccharides you have drawn. a) но b) CH2OH но CH2OH но- он но OH OH но
Which of the following is an anomer of a-D-galactopyranose? CH,OH он он он H он ÇH,OH OH он H он H он ÇH,OH он H. H OH он ÇH,OH OH он он он HHI
Indicate the following for each disaccharide: I) type of glycosidic linkage i.e. a(1→4) II) configuration i.e. alpha or beta 1. OH CH₂OH 0 OH I) II) III) IV) OH CH₂OH -0 OH ОН OH 2. HO CH₂OH 0 I) II) III) IV) ОН HOCH2 ОН HO ОН CH₂OH 3. CH, OH CH2 О CG OH ОН HO ОН HỎ I) II) III) III) reducing or non-reducing sugar IV) name of each monosaccharide IV) OH OH 4. HO I) II) III) IV) CH₂OH OH 0 ОН CH₂OH OH ОН OH
Indicate the following for each disaccharide: I) type of glycosidic linkage i.e. a(1→4) II) configuration i.e. alpha or beta 1. ОН CH₂OH OH I) II) III) IV) 0 ОН 0 CH₂OH OH ОН OH 2. HO CH₂OH I) II) III) IV) ОН HOCH₂, OH ·0 НО 0 ОНА CH₂OH 3. HO I) II) III) IV) CH OH OH O ОН III) reducing or non-reducing sugar IV) name of each monosaccharide HO CH₂ ОН OH ОН 4. HO I) II) III) IV) CH₂OH 0 OH ОН CH₂OH OH О ОН ОН
At equilibrium, D-galactose exists almost exclusively in its α and β pyranose forms. Aqueous solutions are freshly prepared for the α and β forms, both at the same concentration and temperature. The solution of the α form rotatesplane-polarized light +150.7°, whereas the solution of the β form rotates the light +52.8°. Over time, both solutions have the same measured rotation of +80.2°. How much of the equilibrated solution does each form account for?
What type of glycosidic bond is shown below, α or β?
A schematic diagram of the helical structure of cytochrome b562 is reproduced below. Thisprotein belongs to the family of -proteins that have a four-helix bundle. Number the helices 1 – 4according to their N  C direction. Indicate relative orientations of the macrodipoles of helices 1 – 4adjacent to the diagram of cytochrome b562. Remember that according to the definition of a dipolethat the arrow points towards the positive end.

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