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1.Which is TRUE for saponification? carried out by an acid the alcohol portion reacts with the metal the metal reacts with the acidic functional group product is a nonpolar compound

1.Which is TRUE for saponification? carried out by an acid the alcohol portion reacts with the metal the metal reacts with the acidic functional group product is a nonpolar compound

Biochemistry
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.Which is TRUE for saponification?
carried out by an acid
the alcohol portion reacts with the metal
the metal reacts with the acidic functional group
product is a nonpolar compound
 
2.Which of the following is NOT a description of long chain fatty acids? 
saponification number is high
can consume less NaOH
have more acidic group per one gram
more fatty acids are released
 
3.Which is TRUE for halogenation? 
addition of mercuric salt
high double bonds absorb less halogens
unsaturated portions absorb iodine
addition of hydrogen
 
4.It is the reason why hydrogenated cooking oil has less nutritional value.
it hardens at room temperature
done under high pressure
more difficult to digest
less saturated
 
5.Which substance causes a rancid odor to oxidized oil?
hydrocarbons chains
aldehydes
liberated CO2
peroxides

6.Which process does BHA undergo?
oxidation
reduction
condensation
none of the above
 
7.How does oil react with HCl?
oxidation
reduction
hydrolysis
digestion


8.Is saponification a type of hydrolysis?
yes
no
 
9.What portion of the cholesterol structure indicates an alcohol functional group?
C3
-ol-
-OH
CH3


10.Which has more bias in terms of production?
Taurocholic
Glycocholic
 
11.In Fouchet’s test, what happens when the sample urine contains bilirubin?
Barium sulfate reacts with sulfates present in the bilirubin.
Barium sulfate is precipitated and oxidized
Bilirubin adheres to the precipitate and oxidized by Fouchet’s reagent
Ferric chloride is reduced by trichloroacetic acid
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