Mark the CORRECT alternative regarding the amino acid tyrosine: a) It can present anionic forms with two different charge magnitudes at pH values ​​above the isoelectric point b) it is considered as a basic amino acid c) pH 7 migrates towards the cathode d) the side chain is not part of the acid-base equilibria that take place in aqueous solution e) exhibits minimal solubility in water at a pH value greater than 7

Q: ) What would be the predominant ionization states of this amino acid at physiological pH (7.4) and…

A: Amino acids contain an alpha-amino group, an alpha-carboxylic group, and a side chain. The side…

Q: ___ fatty acid chain length, as well as ___ the number of double bonds has the effect of increasing…

A: Ans- Decreasing the fatty acid chain length, as well as increasing the number of double bonds has…

Q: Which of the following fatty acids is most likely to be a liquid at room temperature? A) B) D) E) OA…

A:

Q: a) Draw an alpha 16 linkage between N-acetylglucosamine (phosphorylated at carbon number 6) and…

A: following image shows the alpha 1 6 glycosidic linkage.

Q: HOCH, OH OH OH OH

A: Biopolymers or large biomolecules, such as nucleic acids are needed for all known types of life.…

Q: What charged groups are present in glutamate at a pH = 7? OA) 1× NH3+ B) 1 x COOT C) 1× NH3 and 1 x…

A: Glutamate is an amino acid with molecular formula C5H9NO4. It is considered as acidic amino acid due…

Q: For each of the following amino acids: 1) describe what the important functional group of the amino…

A: Proteins are made up of amino acids. Each amino acid has a distinct side chain, also referred to as…

Q: If a protein has bound 7 acidic protons at pH 6.4 and it is known to be at its isoelectric point at…

A: The pH at which a protein carries no net charge (is neutral), is known as the isoelectric point (pI)…

Q: c) If Jane Chemist wants Cysteine to move down the middle of the paper during electrophoresis, what…

A: There are four types of biological macromolecules: proteins, nucleic acid, lipids and…

Q: 2. The amino acid side chain residues in an a helix point center of the helix. A) Outward B) Inward…

A: Proteins have four level of structures.  Primary structure Secondary Structure Tertiary Structure…

Q: Amino acid analysis of the peptide angiotensin II shows the presence of eight different amino acids…

A: Trypsin and chymotrypsin are proteolytic enzymes, which help to cleave the peptide bonds from…

Q: What is expected to happen to a suspended protein when the pH of the solution is adjusted to the…

A: The pH impacts the precise nature of protein interactions by altering the protonation state of…

Q: A decapeptide was isolated from a thermophilic bacteria. Treatment of this peptide with 2-…

A: Proteins are large biomolecules that compose structural and motor elements of a cell, and also as…

Q: Which of the following is true of the molecule pictured below? A) It will spontaneously form into…

A: Triglycerides are the molecules composed of long chains of three fatty acids attached to a Glycerol…

Q: What is the purpose of a) SDS and b) beta-mercaptoethanol in the lysis buffer for proteins being…

A: Separation of proteins according to their molecular weight or size is performed by the use of…

Q: when preparing a buffer solution for a biological experiment, one should choose  a) a weak acid and…

A: Buffer solutions often are weak acid/strong acid and conjugate base. buffers resist the change…

Q: An unknown amino acid dissolves in octanol and is calculated to have a negative ΔG when going from…

A: Introduction:-  Amino acids are the building blocks of proteins, which are essential macromolecules…

Q: 5- Select the correct sequence of steps in a proteomic experiment: Protein extraction from the…

A: Hi! As you have posted multiple questions and have not mentioned which is to be answered, we are…

Q: Compare the molecular weights of   a) a cellulose with 100 GLC units,   b) a hardwood xylan with…

A: Cellulose is the substance present in the plant cell wall. It is composed of beta 1→4 glycosidic…

Q: Consider a negatively charged protein adsorbed on anion-exchange gel at pH 8. (a) How will a…

A: Proteins are essential nutrients for the human body. They are one f the building blocks of body…

Q: Vasopressin, a nonapeptide hormone secreted by the pituitary gland, functions by stimulating the…

A: Hormones are molecules secreted at a very low quantity from the endocrine glands. There are…

Q: A decrease in blood pH causes the histidine side chain of Hb to become _____ favoring the _____…

A: A protein present in the erythrocytes that transports oxygen from the lungs to the cells and…

Q: When an inhibitor is bound to the enzyme via a combination of (nonbonding interactions)…

A: Inhibitor is a molecule that when bound to enzyme stops the enzyme action. It can be of two types…

Q: A tripeptide consisting a of three histidine residues will have charge at a pH of 7.4. A) net…

A: Peptides are polymers of amino acids formed (2 to 50 amino acids) which are linked by peptide/amide…

Q: Draw Ramachandran plot for: a) regular secondary structure with Φ = 60-65 and Ψ = 60-80

A: The combination of the backbone dihedral angles ψ and ϕ statistical distribution is shown by…

Q: (1) (2) (3) Which of the following residues would be most likely to make contact with the aqueous…

A: Proteins are intricate macromolecules made up of a large number of amino acids that are connected by…

Q: Draw the following amino acids described below include all hydrogens in the structure. 1)amino acid…

A: Amino acids are present in the protonated or deprotonated form depending on their pKa and the pH of…

Q: 1) If the pH of the rain drops from 6 to 5 due to air pollution, the rain has become: a) two time…

A: Acid rain caused when the rain is mixed with the volatile toxic compounds like sulfur dioxide and…

Q: Your protein has a pI of 8.34 and is in a pH 7 buffer. Which of the chromatographs below would you…

A: *Cation exchange chromatography is an ion exchange chromatography used to separate molecules based…

Q: Which of the following amino acids will bind to anion exchange resin at pH 7.0?

A: Anion-exchange chromatography is a type of ion exchange chromatography. Here the stationary phase…

Q: Angiotensin Converting Enzyme (ACE) is the target of ACE inhibitors such as captopril that are used…

A: Peptides are composed of twenty standard amino acids. These twenty standard amino acids differ from…

Q: Which of the following is not one of the states of lipids?a) Para crystalline stateb) Liquid ordered…

A: Lipids are made of fatty acids (fats and oils) and glycerol that serves as the main reservoirs of…

Q: When phospholipids are carefully mixed with water they are observed to exhibit which of the…

A: Phospholipids:  Phospholipids, also known as phosphatides, are lipids with a hydrophilic "head"…

Q: Φ and ψ in the Ramachandran plot (below) are: a) Rotational angles around the bond between the…

A:

Q: Imagine you were able to incorporate real and artificial amino acids with the following side chains…

A: Amino acids with phenol, CH2CH3 -CH2OH side chains tends to be more polar compared to phenyl, hence…

Q: Ceramide is in which lipid class? A)  triacylglycerols  b)   phospholipids    c)  glycolipids    d)…

A: Lipids are a chemically diverse group of biomolecules that have two things in common:low solubility…

Q: Peptide bonds cannot rotate. This is because: a) the amino acid side chains are too bulky to allow…

A: The peptide bond contains an amide type function group. It is formed by the two amino acid, that is,…

Q: What charged groups are present in leucine at a pH = 7? OA) 1× NH3¹ B) 1 x COO OC) 1× NH3¹ and 1 ×…

A: Amino acids have a central carbon atom known as α-carbon atom. Each amino acid has an amino group,…

Q: For the 3 molecules in the image, explain if the nitrogen can act as a hydrogen bond acceptor or not…

A: There are different types of bonds formed between atoms to form a molecule. The different types of…

Q: An unsaturated fatty acid produces more energy than the analogous saturated fatty acid. A) True B)…

A: Saturated fatty acids contain hydrocarbon chains that are only linked by single bonds. There are one…