The portion of the structure of a sphingophospholipids that constitute its head in the “head and two tails” model has to be stated. Concept introduction: In sphingophospholipids, the platform molecule is sphingosine to which one fatty acid and one phosphate group are attached. An alcohol is attached to the phosphate group. There are two ester linkages and one amide linkage present in the structure of sphingophospholipids.
The portion of the structure of a sphingophospholipids that constitute its head in the “head and two tails” model has to be stated. Concept introduction: In sphingophospholipids, the platform molecule is sphingosine to which one fatty acid and one phosphate group are attached. An alcohol is attached to the phosphate group. There are two ester linkages and one amide linkage present in the structure of sphingophospholipids.
Interpretation: The portion of the structure of a sphingophospholipids that constitute its head in the “head and two tails” model has to be stated.
Concept introduction: In sphingophospholipids, the platform molecule is sphingosine to which one fatty acid and one phosphate group are attached. An alcohol is attached to the phosphate group. There are two ester linkages and one amide linkage present in the structure of sphingophospholipids.
(b)
Interpretation Introduction
Interpretation: The portion of the structure of a sphingophospholipid that have hydrophobic properties in the “head and two tails” model has to be stated.
Concept introduction: In sphingophospholipids, the platform molecule is sphingosine to which one fatty acid and one phosphate group are attached. An alcohol is attached to the phosphate group. There are two ester linkages and one amide linkage present in the structure of sphingophospholipids.
Cual es la formula semidesarrollada del 3-metil-1-butino?
2. A graph shown below shows first ionization energies for elements from H to Ne.
First ionization energy/kJ mol
2500
2000
1500
1000
500
T
T
T
T
1
2
3
5
6
7
8
9
10
Atomic number
a) Using arguments of electronic structure, explain why ionization energy of Li is much
lower than that of H.
(2 points)
then dips at O.
b) Using the same arguments, explain why ionization energy increases from B to N, and
(3 points)
Give the name of this compound, including stereochemistry if relevant:
CICH2
CH3
Br
CH₂CH=CH2
Write in the product, including stereochemistry where relevant, for these
reactions. See end of ch. 8, p. 301-303.
1. 03
a) 2-methyl-2-pentene
->
2. Zn, H*
Br2
b) 1-ethylcyclopentene
-->
Chapter 19 Solutions
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