Concept explainers
Videos
(a)
Interpretation:
Presence or absence of glycerol, sphingosine, phosphate, ester, carboxyl group, hydroxyl group and steroid nucleus in leukotriene C4 needs to be determined.
Concept introduction:
Glycerol is a simple polyol compound with three carbons and with three carbons and hydroxyl groups in each carbon
Sphingosine is an 18-carbon
Phosphate is a phosphorous atom bonded to four oxygen atoms. One oxygen is bonded to phosphorous with a double bond and others are bonded with a single bond and bear a negative charge.
Ester group is a derivative of a
Carboxyl group formed when a carbon atom is bonded to an oxygen atom with a double bond and to a hydroxyl group.
Hydroxyl group is formed when an oxygen is bonded to a hydrogen.
Steroid nucleus is found in all steroids. It is made up of three cyclohexanes and one cyclopentane bonded together. Steroids vary by the
(b)
Interpretation:
Presence or absence of glycerol, sphingosine, phosphate, ester, carboxyl group, hydroxyl group and steroid nucleus in estradiol needs to be explained.
Concept introduction:
Glycerol is a simple polyol compound with three carbons and with three carbons and hydroxyl groups in each carbon
Sphingosine is an 18-carbon diol with an amino group and a double bond
Phosphate is a phosphorous atom bonded to four oxygen atoms. One oxygen is bonded to phosphorous with a double bond and others are bonded with a single bond and bear a negative charge.
Ester group is a derivative of a carboxylic acid group. The hydrogen attached to oxygen in carboxylic acid is replace with an organic fragment in esters.
Carboxyl group formed when a carbon atom is bonded to an oxygen atom with a double bond and to a hydroxyl group.
Hydroxyl group is formed when an oxygen is bonded to a hydrogen.
Steroid nucleus is found in all steroids. It is made up of three cyclohexanes and one cyclopentane bonded together. Steroids vary by the functional groups attached to this core and oxidation states of the ring.
(c)
Interpretation:
Presence or absence of glycerol, sphingosine, phosphate, ester, carboxyl group, hydroxyl group and steroid nucleus in lecithin must be mentioned
Concept introduction:
Glycerol is a simple polyol compound with three carbons and with three carbons and hydroxyl groups in each carbon
Sphingosine is an 18-carbon diol with an amino group and a double bond
Phosphate is a phosphorous atom bonded to four oxygen atoms. One oxygen is bonded to phosphorous with a double bond and others are bonded with a single bond and bear a negative charge.
Ester group is a derivative of a carboxylic acid group. The hydrogen attached to oxygen in carboxylic acid is replace with an organic fragment in esters.
Carboxyl group formed when a carbon atom is bonded to an oxygen atom with a double bond and to a hydroxyl group.
Hydroxyl group is formed when an oxygen is bonded to a hydrogen.
Steroid nucleus is found in all steroids. It is made up of three cyclohexanes and one cyclopentane bonded together. Steroids vary by the functional groups attached to this core and oxidation states of the ring.
(d)
Interpretation:
Presence or absence of glycerol, sphingosine, phosphate, ester, carboxyl group, hydroxyl group and steroid nucleus in fatty acid needs to be explained.
Concept introduction:
Glycerol is a simple polyol compound with three carbons and with three carbons and hydroxyl groups in each carbon
Sphingosine is an 18-carbon diol with an amino group and a double bond
Phosphate is a phosphorous atom bonded to four oxygen atoms. One oxygen is bonded to phosphorous with a double bond and others are bonded with a single bond and bear a negative charge.
Ester group is a derivative of a carboxylic acid group. The hydrogen attached to oxygen in carboxylic acid is replace with an organic fragment in esters.
Carboxyl group formed when a carbon atom is bonded to an oxygen atom with a double bond and to a hydroxyl group.
Hydroxyl group is formed when an oxygen is bonded to a hydrogen.
Steroid nucleus is found in all steroids. It is made up of three cyclohexanes and one cyclopentane bonded together. Steroids vary by the functional groups attached to this core and oxidation states of the ring.
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Chapter 19 Solutions
General, Organic, & Biological Chemistry
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- 3. Provide the missing compounds or reagents. 1. H,NNH КОН 4 EN MN. 1. HBUCK = 8 хно Panely prowseful kanti-chuprccant fad, winddively, can lead to the crading of deduc din-willed, tica, The that chemooices in redimi Грин. " like (for alongan Ridovi MN نيا . 2. Cl -BuO 1. NUH 2.A A -BuOK THE CF,00,H Ex 5)arrow_forward2. Write a complete mechanism for the reaction shown below. NaOCH LOCH₁ O₂N NO2 CH₂OH, 20 °C O₂N NO2arrow_forward4. Propose a synthesis of the target molecules from the respective starting materials. a) b) LUCH C Br OHarrow_forward
- The following mechanism for the gas phase reaction of H2 and ICI that is consistent with the observed rate law is: step 1 step 2 slow: H2(g) +ICI(g) → HCl(g) + HI(g) fast: ICI(g) + HI(g) → HCl(g) + |2(g) (1) What is the equation for the overall reaction? Use the smallest integer coefficients possible. If a box is not needed, leave it blank. + → + (2) Which species acts as a catalyst? Enter formula. If none, leave box blank: (3) Which species acts as a reaction intermediate? Enter formula. If none, leave box blank: (4) Complete the rate law for the overall reaction that is consistent with this mechanism. (Use the form k[A][B]"..., where '1' is understood (so don't write it) for m, n etc.) Rate =arrow_forwardPlease correct answer and don't use hand rating and don't use Ai solutionarrow_forward1. For each of the following statements, indicate whether they are true of false. ⚫ the terms primary, secondary and tertiary have different meanings when applied to amines than they do when applied to alcohols. • a tertiary amine is one that is bonded to a tertiary carbon atom (one with three C atoms bonded to it). • simple five-membered heteroaromatic compounds (e.g. pyrrole) are typically more electron rich than benzene. ⚫ simple six-membered heteroaromatic compounds (e.g. pyridine) are typically more electron rich than benzene. • pyrrole is very weakly basic because protonation anywhere on the ring disrupts the aromaticity. • thiophene is more reactive than benzene toward electrophilic aromatic substitution. • pyridine is more reactive than nitrobenzene toward electrophilic aromatic substitution. • the lone pair on the nitrogen atom of pyridine is part of the pi system.arrow_forward
- The following reactions are NOT ordered in the way in which they occur. Reaction 1 PhO-OPh Reaction 2 Ph-O -CH₂ heat 2 *OPh Pho -CH2 Reaction 3 Ph-O ⚫OPh + -CH₂ Reaction 4 Pho Pho + H₂C OPh + CHOPh H₂C -CH₂ Reactions 1 and 3 Reaction 2 O Reaction 3 ○ Reactions 3 and 4 ○ Reactions 1 and 2 Reaction 4 ○ Reaction 1arrow_forwardSelect all possible products from the following reaction: NaOH H₂O a) b) ОН HO O HO HO e) ОН f) O HO g) h) + OHarrow_forward3. Draw diagrams to represent the conjugation in these molecules. Draw two types of diagram: a. Show curly arrows linking at least two different ways of representing the molecule b. Indicate with dotted lines and partial charges (where necessary) the partial double bond (and charge) distribution H₂N* H₂N -NH2arrow_forward
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