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CLNR 326 Quiz 5

Terms in this set (20)

chemically, fatty acids are
carboxylic acids
glycerol can form ester linkages with _ moles of fatty acid
3
the following is catalyzed by

Triacylglycerol -> Diacylglycerol -> Monoacylglycerol
horomone-sensitive lipase
which of the following statements about the activation of fatty acids is correct?
fatty acid activation requires energy in the form of ATP
which fatty acid do you predict to be least healthy dietetically and also a solid at room temperature?
CH3-CH2-CH2-CH2-CH2-CH2-CH2-COOH

(1-CH3, 6-CH2, 1-COOH)
how many moles of acetyl CoA are formed via beta-oxidation?

Arachidic Acid, CH3(CH2)18COOH, a 20-carbon saturated fatty acid
10

20/2 = 10
the acetyl CoA formed will be utilized within

Arachidic Acid, CH3(CH2)18COOH, a 20-carbon saturated fatty acid
the Krebs Cycle
how many rounds of beta-oxidation are required to completely oxidize it?

Arachidic Acid, CH3(CH2)18COOH, a 20-carbon saturated fatty acid
9

20/2 = 10 - 1 = 9
how many moles of ATP form?

Arachidic Acid, CH3(CH2)18COOH, a 20-carbon saturated fatty acid
163

12*10 = 20
5*9 = 45
20 + 45 = 165 - 20 = 163
if the rate of oxygen consumption is faster than the rate of oxidation, which of the following may form?
acetone
acetoacetate
beta-hydroxybutyrate

ALL OF THE ABOVE
the redox reactions in beta-oxidation are mediated via
NAD and FAD
the carrier that shuttles fatty across the mitochondrial membrane is
carnitine
during fatty acid biosynthesis, carbons are added to the growing chain in the form of
malonyl CoA
the oxidation of small chain fatty acids is more likely to occur in the
peroxisomes
the rate-limiting step in fatty acid biosynthesis is catalyzed by
acetyl CoA carboxylase
hormonally, fat synthesis is mediated by
insulin
which of the following statements about the synthesis of fatty acids is correct?
NADPH is used for fatty acid synthesis
True or false: Beta-oxidation only occurs in the mitochondrial matrix.
false
True or false: Oxidation of a 19-carbon fatty acid will lead to formation of propionyl CoA
true
True or false: Activation of fatty acids, undergoing beta-oxidation require 1 mole of ATP
false
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