Consider the structure of the steroid cholesterol for the following questions.Part 1 of 4Which of the following depicts the correct labeling for the rings of the steroid nucleus in cholesterol? Selebest answer.HOHOPart: 1 / 4ABAPart 2 of 4Give the number of the carbon to which the OH group is bonded.

Part 1:Steroid structures have four rings labeled as A, B, C, and D:Ring A is the first (leftmost)…

Answered: Consider the structure of the steroid…

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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draw the primary structure of the polypeptide at physiological pH range of 7.35-7.45 put the name of each part and the charge pls then compute for the isoelectric point please show complete solution DEHINS
Determine the class of lipid (see attached image for choices) shown by the following structures and whether if it is saponifiable or non-saponifiable.
An illustration of a simple triacylglycerol is given. Choose which type of fatty acid is described by each of the given phrase.
Classify the following lipid (choose all that apply).CHOOSE ALL THAT APPLY a. omega-6 b. trans alkene(s) c. omega-3 d. wax ester e. saturated f. monounsaturated g. fatty acid h. triglyceride i. steroid j. polyunsaturated k. cis alkene(s)
1. (a) The diagram below shows a structure of monosaccharide. CH,OH C=0 H-C-OH НО—С—Н ČH,OH i. Draw the figure above on your answer sheet and indicate ALL chiral carbon(s) in your figure with *. ii. With reference to the number of carbon, the type of carbonyl group and D/L configuration, suggest a name consisting these three properties to describe the monosaccharide shown above. Explain why this monosaccharide is in D- or L- configuration as you suggested in (ii). 111. (b) The diagram below shows different configurations of glucose. CH,OH CHO ÇH,OH H H-C-OH O. OH H. H. OH H. H OH HO-C-H но H-C-OH но H. H-C-OH OH OH ČH,OH A В C i. Which glucose molecule, A or C, is in a configuration? Explain. ii. What is the name of the conversion among different configurations? iii. Glycosaminoglycans (GAG) consist of modified sugars. Give a name of the typical modification to the sugar. What makes GAG ideal for the fluid in the joints? to
For the following lipid, answer the questions listed below. 0- HC-o (CH)),CH=CH(CH,);CH; H,C-o-c-(CH2);CH=CHCH,CH=CHỊCH,),CH, Is this lipid considered a fat or oil? a. b. How many H2 molecules would be needed to go through a complete hydrogenation reaction? Would the hydrogenated product (after hydrogenation has occurred) have a higher or lower mp than the original starting material? С.
Discuss how considering 'allylic strain' can explain the favoured conformation of alanine in the tripeptide Ala-Met-Thr, and how this is relevant to the B-sheet conformation in peptides/proteins.
The figure below illustrates the molecular structures of two fatty acids. A B H₂C The structural formula of erucic acid and behenic acid с H₂C D erucic acid behenic acid Which of the following best explains why erucic acid is liquid at room temperature but behenic acid is solid at room temperature? O OH The presence of a double carbon to carbon bond in erucic acid prevents the molecule from packing closely together. The lack of any double carbon-carbon bonds in behenic acid causes the molecule to be come polar and therefore packed more tightly. The larger number of carbon atoms in erucic acid prevents the molecule from packing tightly together. OH The smaller number of carbon atoms in behenic acid creates stronger covalent bonds between the carbon atoms allowing for them to pack more tightly together.
The human body uses the branched polymer glycogen for short term storage of glucose in the liver. It is broken down by the stepwise removal of the terminal glucose monomer. Explain why it is an advantage for glycogen to have a branch chain structure rather than a linear structure. (A pargraph would be great)
Which of the following statements are TRUE? Multiple answers:Multiple answers are accepted for this question PLEASE SHOW WORK FOR EACH PART AND EXPLAIN WHY EACH ANSWER CHOICE IS WRONG OR RIGHT a. The tripeptide His-Lys-Glu has a net charge of -2 at pH 8.0. b. The tripeptide Asp-Asp-Asp has a net charge of -3 at pH 7.0. c. The tetrapeptide His-His-His-His has a net charge of -1 at pH 7.0. d. There are 6 possible sequences for a tripeptide containing Arg - His - and Pro. e. Certain bacteria synthesize cyclic tetrapeptides. The net charge at pH 7.0 of a cyclic tetrapeptide consisting of two Pro and two Tyr is 0.
Lipids are a group of molecules that can be divided into five major subgroups based on their structure and function in the body. Give the specific name to each of the following lipid subgroups: a.) ___________________________: long chain hydrocarbons with a carboxyl groups, parts of Triglycerides and phospholipids b.) ____________________________: critical mediators of immune response c.) ____________________________: fat and oil in food and body d.) ____________________________: contain lipid hormones and cholesterols e.) ____________________________: major component of cell membranes

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