18:24 9, 12 refers to a fatty acid that contains:18 carbons, 2 double bonds, and saturation at carbons 9 and 1220 carbons with a double bond at carbons 9 and 12O 18 carbons with a double bond at either carbon 9 or carbon 1218 carbons with two double bonds18 carbons, 2 phosphate heads, and double bonds at carbons 9 and 12

Fatty acids are the simplest type of lipids. They are carboxylic acids with hydrocarbon chain. They…

Answered: 18:249, 12 refers to a fatty acid that…

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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Similar questions

Although the first two carbons of fructose and glucose are identical in structure to DHAP and GADP (from glycolysis), DHAP and GADP equilibriate on their in solution to favor the ketone over the aldehyde, while fructose and glucose do not. Why? a)The larger size of the molecule sterically hinders the isomerization b)The larger sugars have more OH groups which hydrogen bond and disrupt isomerization c)The larger sugars cyclize, and there is no carbonyl to isomerize in the cyclic form d)The larger sugars cyclize, and in the cyclic form the hydrogen bonding is very strong e)The larger sugars are less soluble in water than the smaller sugars
Explain these diagrams
Modify isoleucine to show the predominant forms at pH 1, 7, and 13. Isoleucine has pk, values of 2.4 (carboxyl group) and 9.7 (alaing group). Isoleucine at pl! 7 Isoleucine at pH I 대표 대, 1 - Isoleucine at pli 13 1 1 CH4. I I - CH I ## - 10 II
Give the name and structure of at least two examples of each of the following: Heterocyclic amino acid Aromatic amino acid Neutral amino acid Acidic amino acid Basic amino acid Sulfur-containing amino acid
Ff.186. draw the locations of carbohydrates in sphingolipids and relate these to blood groups.
NH3* *H3N Give the abbreviation for the above tripeptide using the three-letter codes for each amino acid. Z-エのエ-Z
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
Alanine Neoprene Isoprene Arachidonic acid Why would this be isoprene?
23
1- Please refer to the Fisher representation of the 5 monosaccharides below: ÇH2OH CHO CHO CHO CHO H- H- он H- OH OH HO HO но- H- OH HO Но- H- -OH H- H- -OH HO- OH HO H- -OH H- -OH HO HO H- OH ČH2OH ČH2CH ČH2CH ČH2CH ČH2CH D-Fructose D-Glucose L-Glucose L-Idose D-Galactose 1a- Which one(s) of the above molecules belong(s) to the subcategory of aldohexoses? and which one(s) of these molecules belong(s) to the subcategory of ketohexoses? Briefly explain your response. 1b- Which one of the above molecules is an enantiomer of D-Glucose? and which one is an epimer of L-Ildose? Briefly explain your response.
cis, cis-9,12-OCTAdecadiENoic acid Enumerate the number of carbons and unsaturations (double bonds) in this molecule
1

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