Draw a diagram of the aspartic acid side chain in the protonated and unprotonated states. Calculate the ratio of the protonated and unprotonated forms of this side chain that would exist at pH 7 (assume pKa = 4).

Q: The diversity of functional groups on sugars that can form glycosidic bonds greatly increases the…

A: Amino acids are the organic acids that contain alpha carboxyl group, alpha amino group, hydrogen…

Q: Consider olive oil, an oil with a high percentage of fat derived from oleic acid (otherwise known as…

A: When the two hydrogen atoms of the fatty acids which adjoin the double bond are in the same chain,…

Q: On the diagram above, draw a line across each peptide bond in oligopeptide 3a. Write the…

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

Q: Use the pka values, calculate the isoelectric point (pl) of the following amino acids. a) Leucine b)…

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Q: Determine the net charge (to the nearest integer) on the following peptide at pH5 AND pH 12.…

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Q: Biotin (below), also known as Vitamin B7, is a very large organic compound derived primarily from…

A: Vitamin B7 or biotin's empirical formula is C10H16O3N2. It is widespread in foods and also produced…

Q: Draw a peptide that includes Phenylalanine, Cysteine, Tyrosine and Tryptophan. Label them by name…

A: Draw a peptide that includes Phenylalanine, Cysteine, Tyrosine and Tryptophan. Label them by name…

Q: -0OC- pКа 3.2 -Co- CH pKa 4.& CH2 O *H,N-c-C H |

A: Amino acids  are biomolecules that are composed of one alpha carbon bonded to 4 groups. These 4…

Q: The pK₂ of the x-carboxyl group of serine is 2.21, and the pKa of its a-amino group is 9.15.…

A: pKa is the pH at which a weak acid is 50% dissociated. % ionisation of a weak acid = % ionisation of…

Q: Amino acid Cys has ionizable groups with pKa values 2.0, 8.0, and 10.0.  Determine the charge on the…

A: For cysteine Charge when pH is at 1.0? ____+ve_____        Charge when pH is at 9.0? ____-ve_____

Q: Lactic Acid (shown below) is built up in the body during intense workouts as a result of glycolysis.…

A: The carboxylic acid group (COOH) of lactic acid has a pKa of 3.85. The physiological pH of our body…

Q: Draw the L(leucine)-A(alanine)-E(glutamate) triple tide and calculate its isoelectric point.

A: Amino acid sequences are written with N-terminal amino acid on the left and C-terminal amino acid on…

Q: Ornithine is an amino acid that is not used in the synthesis of proteins, but is an important…

A: Ornithine is an example of amino acid that does not take part in the process of protein formation…

Q: What is the molecular weight of a linear polysaccharide consisting of 7 galactose monomers and 1…

A: Glucose and galactose are monosaccharides that are also referred to as simple sugars. They represent…

Q: 2. Peter does not tolerate lactose in milk. He bought a solution of ẞ-galactosidase where [Eo]=10.0…

A: To determine the initial rate of reaction  (Vo)                   Vo = Vmax [C]KM +[C]…

Q: You have discovered a new amino acid that you name in honor of your favorite course.…

A: The titration curve of an amino acid shows the change in pH as an acid or base is added to the…

Q: Describe the amino acid illustrated here (Identify the following amino acid (at pH = 7.0):…

A: Amino acids are the organic molecule composed of amino group (NH2), an acidic carboxylic group…

Q: Describe the amino acid illustrated above (at pH = 7.0). (the following amino acid at pH = 7…

A: Amino acids are the organic molecule composed of amino group (NH2), an acidic carboxylic group…

Q: The E. coli enzyme triose phosphate isomerase has a pI of 5.7. What would the charge on this enzyme…

A: Isoelectric point refers to the value of pH (potential of hydrogen ions) of a molecule or enzyme at…

Q: Consider a protein in which a negatively charged glutamic acid side chain (pKa=4.2) makes a salt…

A: Salt bridges are attractive interactions between two oppositely charged groups. So, more oppositely…

Q: Indicate the net charge of cysteine at pH 9.5

A: There are four classes of biological macromolecules- proteins, nucleic acids, lipids and…

Q: The pKa of the side chain of histidine is 6.00. What is the percent of protonated histidine at pH…

A: All amino acids contain atleast two ionizable groups- the alpha-amino group and the alpha-carboxylic…

Q: Consider the reaction for assembly of a tetrapeptide from four amino acids: Serine + Proline +…

A: Free energy diagram of a reaction has Free energy (G) in Y-axis and Reaction coordinate (timely…