2.The diagram below shows the chemical structure of a lipid molecule.ABIs it a sphingophospholipid or glycerophospholipid?b. What are the terms used to describe the two types of fatty acids in this molecule?а.с.What is the name of the functional group highlighted in the box in the diagram?d. If fatty acid B is metabolized, how many rounds of b-oxidation will it go through?What is the name of molecule released from b-oxidation?e. Name the fatty acid A using n-system and delta system.f.What type of configuration of double bond is shown in fatty acid A?

As you have asked multiple sub part questions we are supposed to answer only first 3 subparts.if you…

Answered: 2. The diagram below shows the chemical…

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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1. What biological molecule are required in the synthesis of protein( choose all that apply)? - phosphate ester - fatty acid (s) - alcohol - glycerol - amino acids 2. ATP is generated during A. Aldehyde reduction B. Alkene hydration C. Acetal synthesis D. Polysaccharide hydrolysis 3. What compound( biological classification) would be the result of protein complete hydrolysis in the mouth? A. Fatty acid and glycerol B. Monosaccharides C. Amino acids D. Disaccharide 4. The hydrophobic/ hydrophilic interaction are present in which protein structure level (s) (choose all that apply) ? - secondary - primary - tertiary -quaternary 5. Which protein structural level is/ are affected by the addition of an organic solvent isopropanol? A. Secondary B. Tertiary C. All are affected D. Quaternary
9. What is sphingosine? For lipids with a sphingosine backbone, to what carbons are the other functional groups attached? How many acyl tails attach to sphingosine to make a sphingolipid? 10. Compare and contrast the structure of sphingomyelins with glycerophopholipids. 11. Which of the following statements is true? Please briefly explain why the false statements are false. A. Phosphatidylcholine and sphingomyelin are evenly distributed at the two monolayers of plasma membrane. B. Phosphotidylserine is enriched at the inner leaflet of transport vesicles. C. In sphingolipids, the fatty acid tail is linked to its backbone via an ester bond. D. Common glycerophospholipids often carry positive charges at physiological pH. E. Lipases are enzymes that can cut structural lipids at different locations
Number 1
When this disaccharide is formed.... Select one: a. An alpha-beta-1,2-glycosidic bond is created b. Glucose and galactose are bonded together c. A beta-1,4-glycosidic linkage is created d. A hemiacetal bond in the molecule's center splits e. A water molecule is released
The aromatic side chain of Trp residues in proteins and peptides can be chemically modified by two photochemical reactions using ultraviolet light (hv) at 20°C (Figure 1). hv CCI3CO₂H (10 mm), Buffer A (pH 8.0) O HO HN HN- O A. Acidic NH ww O B. Basic O c. Hydrophobic O D. Polar neutral OB. Indole NH ww Figure 1 Photochemical reactions of Trp side chain with CHCl3 and CCI₂CO₂H O A. Imidazole Each substitution on Trp replaces one hydrogen atom attached to a carbon somewhere on the indole ring. Photochemical modification percentages of various Trp residues in carbonic anhydrase at 20°C are shown in Table 1. Table 1 Photochemically Modified in Carbonic Anhydrase Reactant Buffer W4 W15 W96 W122 W190 W207 W243 51% 0% 44% A 37% 0% 0% CHCI 3 0% CHCI₂ B 0% 0% 0% 0% 0% 0% 55% CCI,CO₂H A 72% 66% 0% 100% 100% 0% 75% O c. Pyrimidine OD. Pyrrole hv W15 and W96, which are in the interior of carbonic anhydrase, are 21% and 29% modified respectively by 10 mM CHCl3 in Buffer A at 75°C, a temperature…
30. The shown structure is a cyclic D-monosaccharide. Which of the following statements is true? HOCH₂ H OH H OH OH CH₂OH A. The chemical can react with methanol to form a hemiacetal in solution without forming an open chain structure B. The chemical needs to form an open chain structure to be able to react with methanol to produce a glycosidic linkage in solution C. Both A and B D. Neither A nor B
1. Draw the structure of the following fatty acids: (a) Stearic acid (b) Arachidonic acid 2. Draw the structure of 1-palmitoleyl-2-linolenyl-3-stearyl triacylglyceride 3. Draw the structure of 1-linolenyl-2-arachidyl-3-phosphatidylserine 4. Draw the structure of testosterone, the primary male sex hormone, which has a keto group at carbon 3 instead of a hydroxyl group, the double bond at carbon 4 instead at carbon 5, and a hydroxyl group instead of the alkyl group at carbon 17. 5. Why are polyunsaturated omega-3 fatty acids considered as good for our health? Explain such phenomena based on their chemical structure.
4. Predict the products (draw their structures) of the fatty acid with the reagents below. (a) + CH;OH HO. (b) OH HO.
6. b. Draw a box around the disulfide bridge in oxytocin, if present, or write "none". 7. Mark each peptide bond in oxytocin by making the corresponding line in the structure thicker or marking it with a different color. The first one is shown for you as an example (in dark orange). 8. Number the central carbon of each amino acid in oxytocin by pointing a small arrow to it or by circling the corresponding vertex in the image. Numbers 1 and 2 indicate the central carbons of the first and second amino acids of oxytocin, and are shown for you as an example. 9. Fill out the following table, listing amino acids that make up oxytocin in order, from the N terminus to the C terminus, characterizing each amino acid by the properties of its R group (side chains), and briefly indicating the reasoning for the characterization. You may consult amino acid groupings by category in the slides (or the textbook, p.49), but you must explain the reasoning for each in your own words. CO 1 AA# Abbre- Full…
(i) Identify the type of sphingolipids A and B in Figure 2. CHS A CH3 в Figure 2 (ii) What structural similarities are shared by sphingolipids and proteins? (iii) Why are sphingolipids abundant in cell membrane?
An illustration of a simple triacylglycerol is given. Choose which type of fatty acid is described by each of the given phrase Choices: A, B, C (Refer to picture) 1. a hydrocarbon chain that bends once 2. a polyunsaturated fatty acid chain 3. cannot be saturated by vitamins 4. absorbs the highest number of iodine 5. can be completely saturated by an I2 molecule
Melibiose is a disaccharide found in artichokes. It consists of galactose and glucose linked by an a(1→6) glycosidic bond. a. Draw the structure of melibiose. b. Is melibiose a reducing sugar? c. Compare the structures of melibiose and lactose.

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2. The diagram below shows the chemical structure of a lipid molecule. A В a. Is it a sphingophospholipid or glycerophospholipid? b. What are the terms used to describe the two types of fatty acids in this molecule? c. What is the name of the functional group highlighted in the box in the diagram?