Explain why casein precipitates when vinegar is added. Why was milk or raw egg once used as an antidote in cases of heavy metal poisoning? Based on your isolated yield of casein, how many grams of the protein are in one 200 g glass of milk? Which of the solutions contained amide bonds? Which test tells you this? Which of the solutions contained compounds with primary amino groups? Which test tells you this?

Q: For which of the following problems would ICP-MS be appropriate? Explain why. a. For the…

A: ICP MS is an analytical technique used for the analysis of trace elements .

Q: As we’ve discussed, a peptide bond is made when amino group of one amino acid combines with the…

A: Amino acids contain amine and carboxyl functional group, with a side chain group (R) which…

Q: Why is alanine not a conservative substitution for glycine? Is arginine a conservative substitution…

A: The conservative substitution is the replacement of amino acids by the other amino acid which…

Q: Hydrophobic interactions:_ Quaternary structure: a. Complex biomolecule consisting of a string of…

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Q: In Figure 5.3, to make a peptide bond, between alanine and glycine, a chemical reaction was…

A: Amino acid is a compound that is composed of NH2 (amino) group and COOH (carboxylic acid) group. The…

Q: Results and Discussion:   Schiff's Test: Samples: tyrosine, lysine, arginine Reagents:…

A: A question based on qualitative analysis, which is to be accomplished.

Q: There are twenty amino acid that we will encounter in the unit about proteins. Let us see some…

A: Amino acids are biomolecules having both amino and carboxylic groups in one molecule. If both…

Q: Why does butter stay solid at room temperature, while olive oil remains as a liquid? Explain your…

A: Butter and olive oils are examples of fats. These fats are categorized into saturated and…

Q: How to differentiate between bilirubin crystals and tyrosine crystals?

A: Bilirubin crystals and tyrosine crystals can be differentiated on the basis of their solubility in…

Q: a. How many different proteins (in terms of sequence) can you make if the protein is five amino…

A: Protein:Proteins are made by forming a peptide bond between α-carboxyl groups of one amino acid with…

Q: Which of the following is/are true?    Methionine is an essential amino acid   Valine contains two…

A: Amino acids and proteins are the building blocks of human life. Amino acid contain one COOH group…

Q: a-Amino acids have the following general form: но H,N- OH R-group a) Draw the structures of any…

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Q: Which of the following is true about the twenty standard amino acids? All of them are achiral…

A: Amino acids are alpha amino carboxylic acids. They contain both amino group and carboxylic acid…

Q: Proteins have complex three-dimensional structures. These polymers are held into these specific…

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Q: 1. Two generic amino acids and the location of the resulting peptide bond between them. 2. A generic…

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Q: A tripeptide (amino acid sequence: Aspartyl-alanyl-aspartic acid) has, free amino group(s) and…

A: In case of aspartyl-alanyl-aspartic acid, it has one free amino group and three carboxyl groups.

Q: draw the dipeptides of Thr-Ala and circle the peptide linkage

A: We have to draw the dipeptides of Thr-Ala and circle the peptide linkage

Q: 1. Consider only 2 amino acids H H 1 COOH -4---- NH₂ с 1 C_COOH R' R Write the structural formula…

A: Note: Since you have asked multiple questions, we will solve the first question for you. If you want…

Q: What are the physical properties of an artificial food dyes? What are the chemical properties of an…

A: Artificial food dyes are obtained from petroleum. They are used to improve the appearance of food by…

Q: 1.) The word trans in trans-fatty acids came from the functional group of ________. a.) aldehyde…

A: We are authorized to answer one question at a time, since you have not mentioned which question you…

Q: 1. Write the functional groups for carbohydrate, lipid/fat, and protein/amino acid molecules in…

A: Since you posted multiple questions so, I’ll be solving first three .

Q: What two amino acids are in this picture? methionine and what else

A: Given, Based on the given structure of amino acid, the name of the amino acid is:

Q: Why are there so many more variations for proteins compared to forms of nylon?

A: Monomers are different. Nylon consists of diamines and dicarboxylic acids, Protiens consist of amino…

Q: 1. Secondary structures of proteins are held together by hydrogen bonding Select one: a. from one…

A: Note: As per guidlines one question is solved per each session, please send it seperate Thank you…

Q: Consider the structure of the amino acid L-alanine. H CH, HO H,N- L-alanine Which functional groups…

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Q: There are four amino acids shown in this problem: two are on this page, and two are on the following…

A: We are given 4 different amino acids in 3D diagram through ball and stick model. In ball and stick…

Q: Draw the structure formed between alpha-L-erythose with amino acid asparagine and label the type of…

A: Alpha L erythose react with asparagine amino acid form imine ( Schiff base)

Q: What is a peptide bond? a covalent bond formed when the carboxyl group of one molecule reacts with…

A: In this question, we will Identify the correct statement about a peptide bond.  You can see details…

Q: Use the following figure to answer the question: B It's true about figure A: Choose the ones that…

A: A multiple choice question based on chemical bonding, which is to be accomplished.

Q: A protein structure is solely determined by the sequence of amino acids in the primary structure.…

A: The protein forms from the polypeptide chain after large amount of primary and secondary interaction…

Q: Why is it important/useful to prepare active ingredients that contain an amino group as ammonium…

A: Solubility of Ammonium Salts When an amine is added to a solution of a strong acid, such as…

Q: Which amino acids could be referred to as derivatives of butanoic acid? Give their structures. Draw…

A: The structure of butanoic acid is,

Q: As we’ve discussed, a peptide bond is made when amino group of one amino acid combines with the…

A:

Q: Write structure for oligopeptides “Boc-CPID-benzyl ester” and “Methy ester-CGLK-Boc”. Also show all…

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Q: explain how serine is capable of hydrogen bonding but it could also form covalent bonds?

A: 1. Hydrogen bond forms between hydrogen atom attached with highly electronegative element (N, O) and…

Q: Statins are drugs that have been used to treat high cholesterol by blocking mevalonate synthesis.…

A:

Q: You are working in a biotechnology lab and are analyzing DNA. You obtain a sample of a short…

A: DNA is deoxyribose nucleic acid is the carrier of genetic information. It is present inside the…

Q: Shown below is the structure of a polypeptide. There are [Select] and [Select] H₂N peptide bonds in…

A:

Q: #70 on the pictures, letters A through E

A: Hey since you have posted a question with multiple sub-parts, we will solve first three sub-parts…

Q: Write the structure of the tripeptide Ser-Gly-Ala

A: This structure will form by removal of water by the three molecule Serine, Glycine and Alanine.

Q: The "melting point" of a DNA molecule is the temperature at which the double-helical strand breaks…

A: It has been given that melting point of DNA sample is the temperature at which helix breaks apart .…

Q: One of the major problems in food chemistry is to make food gels maintain its shape and rigidity.…

A: Interpretation- We have to suggest a way tha thow we can maintain gel strength if the polysaccharide…

Q: Part A: Condensed structural formulas (ionized) of amino acids -glycine -alanine -serine Part B:…

A: We have to write the Condensed structural formulas (ionized) of following given amino acids…

Q: a) Draw the structural formula of aspartic acid.   b) Circle the atoms in your formula which would…

A: The mentioned compound in the question is a well example of amino acid having an acidic moiety…

Q: resence of organic solvents?

A: Organic  solvents carbon based  substance capable of dissolving  or dispersing  one  or more…

Q: 1. Consider only 2 amino acids H NH2 - C ·}- COOH - WH₂ - C - COOH 1 R' R Write the structural…

A: Peptide bond :-  The amide linkage (-NH-CO-) formed when -NH2 group of one amino acid molecule…

Q: Using the qualitative tests given, how one can glycine can be differentiated from aniline?

A: Aniline and glycine are aromatic and aliphatic primary amine and primary amine containing amino acid…

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.