What is the process scheme in caffeine isolation?

Q: Give the detailed pathway for the biosynthesis of melatonin, including the type of reaction and the…

A: The biosynthesis of melatonin starts from tryptophan. Tryptophan converted to 5-hydroxy tryptophan…

Q: Describe briefly the methods for cholesterol determination.

A: 1. A test for cholesterol determination is used to determine Cholesterol level and to check the…

Q: How the parenteral suspensions are essential in depot therapy based on the slow release of the drug?…

A: DRUG DELIVERY: In the advancement of polymer chemistry, injectable drug delivery has become very…

Q: What is the significance of HDL cholesterol estimation?

A: HDL is high-density lipoprotein which is considered as a good cholestrol, it absorbs the bad…

Q: Performing a saponification on a triacylglycerol generates soap.  A. True  B. False  C. Depends on…

A: A triglyceride can be defined as an ester that has been derived from glycerol and three fatty acids…

Q: (i) Acetylation of glucose with acetic anhydride gives glucosepentaacetate. Write the structure of…

A: INTRODUCTION: Glucose is a monosaccharide.Glucose is made by plants and most algae durin…

Q: Briefly present the comparison of therapeutic effects of Beta-lactams and glycopeptides (vancomycin…

A: Glycopeptides are a "Different" Class of Cell Wall Synthesis Inhibitors. Glycopeptides also…

Q: A chronic alcoholic requires a much larger dose of ethanol as an antidote to methanolpoisoning than…

A: INTRODUCTION: Antidote is defined as the remedy that prevents the effect of poison, disease.

Q: Define azidodeoxythymidine ? why it is used for ?

A: Azidodeoxythimidine is also called as zidovudine which is antiretroviral medicine helps in…

Q: What is the structure of an optically inactive triacylglycerol that yields two moles of oleic acid…

A: Given:  Two molecules of oleic acid and one mole of palmitic acid hydrolyzed in aqueous acid and…

Q: Explain how each of the three components were purified from panacetin. (assuming your unknown is not…

A: Panacetic is composed of aspirin, sucrose and an unknown. The identity of the unknown is either…

Q: 5. Identify suitable methods for the protection and deprotection of (a) carbonyl groups, (b) amino…

A: Given functional groups, (a) carbonyl groups (b) amino groups (c) alcoholic groups

Q: How are Catecholamines formed?

A: ANSWER SI

Q: What is the purpose of using NaCl and ether in preparing the dispersion in the lipid extraction of…

A: answer - PURPOSE OF NaCl - The egg yolk very low density lipoproteins were prepared from freshly…

Q: The bitterness and toxicity of cassava is explained by the presence of the chemical:

A: Step : 1            The required answer for he above question is follows as :

Q: (i) Acetylation of glucose with acetic anhydride gives glucose pentacetate. Write the structure of…

A: Glucose is a six carbon sugar. Glucose reacts with acetic anhydride to give glucose pentacetate…

Q: Can glucuronidation occur on Talampicillin? Yes or no If yes, please explain the rationale for your…

A:

Q: ) why is significant serum (in the bloodstream) cholesterol reduction so difficult, and why do most…

A: Cholesterol is waxy substance that is present in the blood. Cholesterol is needed to make hormones,…

Q: Where is fuerrous ammonium sulfate hexahydrate sourced from?

A:

Q: The percentage by weight of formaldehyde in fomalin is: a. 40% b. 37% c. 12% d. 10%

A: Since there is no data given as such to calculate the percentage weight, it means that the…

Q: Identify the degree of saturation in the fatty acids shown as line-angle drawings.

A:

Q: Write the haworth projection for  (A) B_D_glucofuranose (B) a_D_frotopyranose

A:

Q: Piracetam undergoes hydrolysis due to the presence in the structure: A) lactone ring B) lactam ring…

A:

Q: Which has a higher melting point, glyceryl tripalmitoleate or glyceryl tripalmitate?

A:

Q: Why is it important that the chemist separate the two enantiomers and test each for its biological…

A: Enantiomers exhibits similar chemical and physical properties.

Q: What are the chemical features of phosphatidylcholine?

A:

Q: Predict the reactions of lipids under basic hydrolysis and with standard organicreagents

A: The reaction of lipids (fats and oils) under basic hydrolysis is as follows: It yields glycerol and…

Q: Consider the glycerophospholipid (phosphoacylglycerol). H H Н H M H H "NH₂ Identify the…

A:

Q: When and in what country were the selective anabolic steroids first developed?

A: Anabolic steroids are a man-made variation of testosterone which is the male sex hormone.…

Q: omparing a series of unsaturated fatty acids, how does the melting point change as the number of…

A: The melting point of unsaturated fatty acids increases as the unsaturation increases

Q: Draw a schematic diagram showing the traction processes of caffeine.

A: Method to extract caffeine from instant coffee, 1. Take 10 g of ground coffee + 4 g sodium…

Q: 4. A lactone cycle in its structure contains: A. Amiodarone B. Griseofulvin C. Nitrofural D.…

A: Since we know that... Cyclic ester is known as lactone... Cyclic amide is known as lactum...

Q: Draw the structure of a glycosphingolipid molecule with an N-acetyl glucosamine (B-1 linkage) head…

A: structure of a glycosphingolipid molecule with an N-acetyl glucosamine (B-1 linkage) head group and…

Q: What is the composition of the soap prepared by hydrolysis of the attachedtriacylglycerol?

A: The hydrolysis of a triacylglycerol will give glycerol molecule and 3 molecules of fatty acid which…

Q: Phosphoacylglycerols should remind you of soap. In what ways are thesecompounds similar?

A: Soaps are the metal salts of fatty acids. Phosphoacylglycerol is a lipid formed by the…

Q: what is the Pka of Lynestrenol ? with illustration

A: The structure of Lynestrenol is :

Q: Give equations for the formation and hydrogenolysis of glutamine benzyl ester.

A: The formation of glutamine benzyl ester is as follows,  In the above scheme, amino acids are…

Q: What is ziegler catalytic procedure for converting alfa olefins to fatty alcohols?

A: Different type of higher Molecular mass containing fatty  alcohols can be prepared by help of…

Q: The phenolphthalein indicator used in this fatty acid test is pink in basic solution and colorless…

A: ✓As we know,phenolphthalein is an indicator that is pink in alkaline solutions of about pH10. ✓When…

Q: What do you mean by Diastereomers ?

A: Diastereomers : Stereoisomers which are non mirror images of each other are known as stereoisomers.…

Q: What types of bond(ether, amide, ester .... etc) covalently attach the fatty acyl chains and the…

A: Dipalmitoyl phosphatidylcholine, abbreviated as DPPC, is basically a phospholipid comprised of two…

Q: can you list out the homolugous series and functional group for Anthocyanidins and…

A: Here we have to mention the functional group present in above molecules-

Q: Why is albumin present in pathological urine? What does the presence of albumin indicate?

A: Answer is given below

Q: Which of the following physicochemical properties predicts the distribution of glutathione in the…

A: Physico-chemical properties are the properties which determine the intrinsic physical and chemical…

Micelles and Biological Membrane

Micelles are the type of lipid molecules that organize themselves in spherical shape in aqueous solutions. The production of the micelle is a reply to the amphipathic behavior of fatty acids. It means that they consist of both hydrophobic regions and hydrophilic regions. In micelles, polar head groups (hydrophilic groups) produce an outer layer associated with water whereas nonpolar tails (hydrophobic groups) are organized in the interior.