Draw the dipeptide that forms between alanine and glycine. Identify the net charge of this dipeptide at a pH = 0.5, 7.4, and 12.0.

Q: Can we determine the type of monosaccharide with the Molisch experiment?

A: Carbohydrates have the chemical formula Cn(H2O)n and are organic molecules. This formula, however,…

Q: Why is a thioester bond a “high-energy” bond?

A: Thioesters are considered the same as ATP, which is an important source of energy for performing…

Q: Draw the structure of the tripeptide alanylglycylvaline and determine its name using three-letter…

A: The amino acids are the building blocks of proteins. Proteins are produced by the translation…

Q: Morphine (C17H19NO3), a narcotic used in painkillers, is a weak organic base. If the pH of a 7.0 x…

A: Henderson-Hasselbalch equation is used to estimate the pH of buffer solution. The numerical value of…

Q: Which among the four bonds is strongest? And which one is weakess? Explain.

A: Biomolecules are the substances present in living organisms that play important roles in chemical…

Q: Below is the titration of histidine. Calculate the average charge of histidine at pH 6.50. ÇOON…

A: Hi! Thank you for the question, as per the honor code, we are allowed to answer the first…

Q: The name of the structure labelled X is:

A: The trachea is also known as the windpipe. It is a hollow tube that joins the larynx and lungs.…

Q: Histidine has three ionizable groups. On the titration curve below, show: a) 2 molar equivalents of…

A: Titration is the graphical representation of a plot, which shows the change in the pH as acid and…

Q: Explain how you would prepare 100ml of 10mMProline solution given that the molecular mass of…

A: Given Values: Concentration of proline solution to be made = 10 mM = 0.01 M Volume of proline…

Q: Write the chemical formula for the conjugate base of each of the following acids:   Carbonic Acid…

A: Conjugate bases are the remaining form, which is left over after the proton donation by an acid. It…

Q: он он CH, CH, CH NH O-C 0-CH, Identify/Name the noncovalent interaction between groups in the…

A: Solution   " O " - Hydrogen bond   It is primarily electrostatic force of attraction between…

Q: Name the two purines and the three pyrimidines.

A: The purines and pyrimidines are the nitrogenous bases that are hydrophobic, planar, and weak bases.…

Q: Which of the following structures is a triglyceride? *

A: Triglycerides are esters derived from glycerol and three fatty acids.  Ester bonds are formed…

Q: Draw the structure of the same tripeptide at pH 7.00.

A: The pKa values of amino acid side chains, the pKa of the alpha amino group at the N-terminus and the…

Q: Write structural formulas to represent the formation of the two dipeptides that form when leucine…

A: Peptide is a compound containing amino acids linked by peptide binds. The number of amino acids is…

Q: Tomato juice has a OH- concentration equal to 1 X 10 -10, what is the pH of this solution?

A: In a solution, the negative log of the concentration of hydrogen ion denotes the pH and the negative…

Q: The pH of a 0.0082 M solution of HNO₃ is

A: The pH of solution is a measure of the molar concentration of hydrogen ions in the solution and as…

Q: Is the nitrogenous base a pyrimidine or purine? How do you know?

A: The nitrogenous bases are classified into purines and pyrimidines.

Q: What does it mean to describe a glycosidic bond as β-1,4-? To describe it as α-1,6-?

A: A glycosidic bond or glycosidic linkage is a type of covalent bond that joins a monosaccharide…

Q: Ammonia, NH3, and phosphorus trihydride, PH3, both have trigonal pyramid geometry. Which one is more…

A: Analysis: Compare the electronegativity values for the atoms and classify the nature of the bonding…

Q: Calculate the [H+], [OH-], and pH of the substance with pOH value of 4.82. Determine whether this…

A: A substance that donates hydrogen ions and accepts a pair of electrons during a chemical reaction is…

Q: Identify the conjugate acids and bases in the following pairs of substances. (CH3), NH / (CH3)3N…

A: An acid is a molecule that can donate a proton to the solution. The presence of acid in a water…

Q: Identify the conjugate acid-base pairs in the following reactions:    HNO2(aq)       +…

A: Acids are substances that give H+ ions.  The base is any substance that can accept a proton or…

Q: For a weak acid with a pKa of 6.0, calculate the ratio of conjugate base to acid at a pH of 5.0

A: The Henderson-Hasselbalch equation helps to describe the derivation of pH as a measure of acidity in…

Q: Draw the structure of the wax composed of stearic acid and a straight-chained alcohol with 30 carbon…

A: Waxes are simple lipids composed of fatty acids (saturated and unsaturated) which are esterified to…

Q: Classify the following nitrogenous bases into purines or pyrimidines.

A: Purines : Adenine and Guanine are purines . Pyrimidines : Thymine , Cytosine and Uracil are…

Q: Choose from the following pairs. Which are constitutional isomers? Pair A Br

A: constitutional isomers are structural isomers that they differ in structure but have the same…

Q: Calculate the fractional charge on ASP at pH 3 using the following pKa values (1. 9.90, 3.90). Write…

A: A total of 300 amino acids are present in the biological system out of the 20 are part of…

Q: Write the name and structural formulas of the different purine and pyrimidine bases.

A: Purine and pyrimidine nucleotide synthesis is an important specialized pathway for a variety of…

Q: How many grams of glucose (C6H2O6 molecular mass =180daltons) would be present in one liter of a 1M…

A: The concentration of a solution is expressed in molarity. Molarity is defined as the number of moles…

Q: Which statement is most TRUE regarding peptide bonds?

A: A chemical bond is an enduring fascination between atoms, particles, or atoms that empowers the…

Q: Glutathione, a powerful antioxidant that destroys harmful oxidizing agents in cells, is composed of…

A: The substance which is produced by the liver naturally is called glutathione. It is present in meat,…

Q: Consider the following acids and their ionization constant, determine which conjugate base is HCOOH…

A: An acidic substance is a substance that can gives H+ions. They are corrosive and sour in nature. On…

Q: What is the pH of a 0.1 M phosphate buffer (pKa = 6.86) that contains 10 times more of the conjugate…

A: Given,  pKa = 6.86 Conjugate acid = 10 conjugate base

Q: Explain the meaning of the designations d and l used to specify the configuration of…

A: A chiral molecule is not the same as its mirror image and cannot be superimposed on its mirror…

Q: For each of the following compounds, indicate the pH at which 50% of the compound will be in a form…

A: According to concept of acids and bases, an acid is defined as a substance that donates a proton (a…

Q: A solution with a density of 0.876 g>mL contains 5.0 g of toluene 1C7H82 and 225 g of benzene.…

A: Molarity is defined as the moles of a solute per liters of a solution. It is also known as the molar…

Q: Which of the following compounds are acids, and which are bases? Explain.

A: Acids and bases are popular chemicals which interact with each other resluting in the formation of…

Q: One of these forms of cocaine is relatively insoluble inwater: which form, the free base or the…

A: Cocaine is a potent drug which is abused in many forms. It can be smoked, or dissolved into a…

Q: Which of the following is least soluble in hexane?

A: Fatty acids (FA) are aliphatic chain with carboxylic acid group, which is non-polar molecule. This…

Q: Identify the acid on the left and its conjugate

A: An acid donates a proton. If it is neutral , it becomes a negatively charged conjugate base. This is…

Q: Identify the components of an amino acid in the following diagram. (a) ______________ (b)…

A: Amino acids are compound containing carbon, hydrogen, oxygen and nitrogen. Amino acids are the…

Q: There are three possible levels of structure for a polypeptide:primary, secondary, and tertiary.…

A: Proteins are unbranched polymers constructed from 22 standard alpha-amino acids. They have four…

Q: Draw the Fischer projection for a monosaccharide.

A: Carbohydrates are polyhydroxy aldehydes or polyhydroxy ketones. Monosaccharides consists of single…

Nitrogen metabolism

Nitrogen metabolism is the synthesis, utilization or uptake, breakdown, and excretion of nitrogenous compounds in the body. The nitrogen metabolism encompasses nitrogen fixation, biosynthesis, and the breakdown of amino acids, purines, and pyrimidine. Since nitrogen-containing compounds are required for various life processes, nitrogen is an important element of life.