1. Halogenation depends on which concept?a. presence of double bond in the glycerol portionb. presence of double bond in the fatty acid portionc. presence of carboxylic acid groupsd. reactivity of potassium ions2. Why do lipids with long chain fatty acids have lower saponification value?a. they are linear in structure, thus it is difficult to saponifyb. they have lower number of carboxyl group per 1 gram of samplec. they require less amount of KOH during titrationd. they require less HCL during back titration3. Melting point: what happens when the carbon chain length of fatty acids become shorter?a. increased melting pointb. decrease melting pointc. no change

Fatty acids are long linear hydrocarbon chains that have a carboxylic acid group at one end which…

Answered: 1. Halogenation depends on which…

Biochemistry

9th Edition

ISBN:9781319114671

Author:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Publisher:Lubert Stryer, Jeremy M. Berg, John L. Tymoczko, Gregory J. Gatto Jr.

Chapter1: Biochemistry: An Evolving Science

Section: Chapter Questions

Problem 1P

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1. Halogenation depends on which concept?

a. presence of double bond in the glycerol portion
b. presence of double bond in the fatty acid portion
c. presence of carboxylic acid groups
d. reactivity of potassium ions

2. Why do lipids with long chain fatty acids have lower saponification value?

a. they are linear in structure, thus it is difficult to saponify
b. they have lower number of carboxyl group per 1 gram of sample
c. they require less amount of KOH during titration
d. they require less HCL during back titration

3. Melting point: what happens when the carbon chain length of fatty acids become shorter?

a. increased melting point
b. decrease melting point
c. no change

Definition Definition Class of organic compounds that contain a carboxyl group ( - COOH ) and has a general formula R - COOH or R - CO 2 H , where R refers to the alkyl, alkenyl, aryl, or other groups. They can undergo different chemical reactions, such as acid-base reactions, esterification, and oxidation. These are essential components of living organisms, playing important roles in metabolic processes, signaling, and as pharmaceuticals.

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