The total number of five-membered rings that are present in the structure of a cholesterol molecule has to be stated. Concept introduction: The structure of the lipid that is based upon the fused system of rings which includes three identical six-membered rings and only one five-membered ring is known as steroid. The fused ring system of the steroid is known as the steroid nucleus. A steroid of C 27 molecule which is a unit of cell membrane and also a precursor of another steroid-based lipid is known as cholesterol.
The total number of five-membered rings that are present in the structure of a cholesterol molecule has to be stated. Concept introduction: The structure of the lipid that is based upon the fused system of rings which includes three identical six-membered rings and only one five-membered ring is known as steroid. The fused ring system of the steroid is known as the steroid nucleus. A steroid of C 27 molecule which is a unit of cell membrane and also a precursor of another steroid-based lipid is known as cholesterol.
Definition Definition Group of atoms that shape the chemical characteristics of a molecule. The behavior of a functional group is uniform in undergoing comparable chemical reactions, regardless of the other constituents of the molecule. Functional groups aid in the classification and anticipation of reactivity of organic molecules.
Chapter 19, Problem 19.98EP
(a)
Interpretation Introduction
Interpretation: The total number of five-membered rings that are present in the structure of a cholesterol molecule has to be stated.
Concept introduction: The structure of the lipid that is based upon the fused system of rings which includes three identical six-membered rings and only one five-membered ring is known as steroid. The fused ring system of the steroid is known as the steroid nucleus.
A steroid of C27 molecule which is a unit of cell membrane and also a precursor of another steroid-based lipid is known as cholesterol.
(b)
Interpretation Introduction
Interpretation: The total number of ester linkages that are present in the structure of a cholesterol molecule has to be stated.
Concept introduction: The structure of the lipid that is based upon the fused system of rings which includes three identical six-membered rings and only one five-membered ring is known as steroid. The fused ring system of the steroid is known as the steroid nucleus.
A steroid of C27 molecule which is a unit of cell membrane and also a precursor of another steroid-based lipid is known as cholesterol.
(c)
Interpretation Introduction
Interpretation: The total number of methyl substituents that are present in the structure of a cholesterol molecule has to be stated.
Concept introduction: The structure of the lipid that is based upon the fused system of rings which includes three identical six-membered rings and only one five-membered ring is known as steroid. The fused ring system of the steroid is known as the steroid nucleus.
A steroid of C27 molecule which is a unit of cell membrane and also a precursor of another steroid-based lipid is known as cholesterol.
(d)
Interpretation Introduction
Interpretation: The total number of functional groups that are present in the structure of a cholesterol molecule has to be stated.
Concept introduction: The structure of the lipid that is based upon the fused system of rings which includes three identical six-membered rings and only one five-membered ring is known as steroid. The fused ring system of the steroid is known as the steroid nucleus.
A steroid of C27 molecule which is a unit of cell membrane and also a precursor of another steroid-based lipid is known as cholesterol.
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Question 19 of 23
Would you expect a saturated or an unsaturated fatty acid to have more
dispersion forces between molecules of the same type, and why?
A) Saturated, because they have more
carboxylic acid groups.
B) Saturated, because they more naturally
stack, so there are more areas where
dispersion forces can occur.
C) Saturated, because the single carbon
bonds are stronger than the double carbon
bonds in unsaturated fatty acids.
D) Unsaturated, because the double carbon
bonds are stronger than the single carbon
bonds in saturated fatty acids.
E) Unsaturated, because double carbon bonds
will interact with other double bonds in a
strong dispersion force.
acer
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