Draw the line bond structure for the general form of an amino acid using “R” to represent the side chain. Draw the N- and C- erminus groups using the forms that are predominant at physiological pH (pH = 7.4). Include lone pairs in your drawing. HINT: The structure of the predominant form of an amino acid will depend on the pH because amino acids involve the carboxyl group/carboxylate group conjugate pair and the quaternary ammonium group/amine group conjugate pair. Using the implications of the the Henderson-Hasselbalch relation, summarized in the table below, it is possible to predict the predominant form of these groups at a particular pH. Solution Condition pH pKa pH = pka Relative Amounts of Acid and Base Forms [HA] > [A-] [A-] > [HA] [HA] = [A-] The pK₂ values of amino acid carboxyl groups are between 2 and 5 (depending on which amino acid), therefore, at pH = 7.4, the base form (carboxylate ion) is predominant. Quaternary ammonium groups that are attached to the a-carbons of amino acids have pKą values of about 9.5, therefore, at pH = 7.4, the acid form (quaternary ammonium group) is predominant.
Lipids
The heterogeneous classes of organic compounds that are not water-soluble but are dissolved in organic solvents that are non-polar in nature are termed lipids. They are a long chain of fatty acids and esters of alcohols. Lipids are generally seen in several plants, microorganisms, and animals. They are utilized as insulation, components of the cell membrane, hormones, and molecules for the storage of energy.
Glycerophospholipid
Glycerophospholipid is the most abundantly occuring phospholipids found in the biological membranes. Lipids include a group of organic compounds like fats, hormones, oils, waxes, vitamins etc. They are non-polar molecules and are insoluble in water. Lipids play an important role in biological systems. They are the building blocks of our cell membranes, store energy and are involved in signaling.
Structure Of Camphor
A terpene with the molecular formula of C10H16O is a waxy, white color solid known as camphor. It is flammable. It also possesses a very pungent taste and a strong odor. There are various sources for extracting camphor from natural products such as the wood of the tree of camphor laurel. Sublimation of wood and steam distillation are some of the methods involved in obtaining camphor.
Glycolipid In Organic Chemistry
Glycolipids are lipids that are an important class of organic compounds in chemistry that have simple to complex applications. They contain carbohydrates, fatty acids, sphingolipids or a glycerol group. In other words, they are the modifications of lipids like acylglycerols, prenols and ceramides. They are all part of a wider group of compounds known as glycoconjugates.
Diterpenoid
The terpenoid class includes diterpenoids, which are chemical compounds with 20 carbon atoms. They are made up of four isoprene units and are derived from geranylgeraniol, a C20 precursor. They have a C20H32 basic structure. These characteristics distinguish diterpenoids from simple terpenes, which have just 10 carbon atoms.
I don't get it at all. Can you help me about the Henderson-Hasselbalch relation, summarized in the table below, it is possible to predict the predominant form of these groups at a particular pH? Draw the line bond structure for the general form of an amino acid using "R" to represent the side chain. Draw the N- and C-terminus groups using the forms that are predominant at physiological pH (pH = 7.4. Include lone pairs in your drawing.
![Draw the line bond structure for the general form of an amino acid using "R" to represent the side chain. Draw the N- and C-
terminus groups using the forms that are predominant at physiological pH (pH = 7.4). Include lone pairs in your drawing.
HINT:
The structure of the predominant form of an amino acid will depend on the pH because amino acids
involve the carboxyl group/carboxylate group conjugate pair and the quaternary ammonium
group/amine group conjugate pair. Using the implications of the the Henderson-Hasselbalch
relation, summarized in the table below, it is possible to predict the predominant form of these
groups at a particular pH.
Solution
Condition
pH <pka
pH > pKa
pH = pka
Relative Amounts of
Acid and Base Forms
[HA] > [A]
[A-] > [HA]
[HA] = [A-]
The pK₂ values of amino acid carboxyl groups are between 2 and 5 (depending on which amino
acid), therefore, at pH = 7.4, the base form (carboxylate ion) is predominant.
a
Quaternary ammonium groups that are attached to the a-carbons of amino acids have pK, values of
about 9.5, therefore, at pH = 7.4, the acid form (quaternary ammonium group) is predominant.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fa420163b-bd7c-489f-b873-d94afde8c00a%2F0e476453-f19d-483e-bf39-ebd31691b232%2F9gk9do_processed.png&w=3840&q=75)
Step by step
Solved in 3 steps with 3 images
