Biochemistry Evals - Lipid oxidation ketogenesis; Acylglycerol and eicosanoids; Lipid transport and storage; Cholesterol Flashcards

1
Q

Lanosterol to cholesterol except:

A

shortening of carbon 30 to 25

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2
Q

NSAIDS

A

inhibit PGH synthesis

cooxygenase

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3
Q

C27H450H

A

Cholesterol

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4
Q

Decrease 100 mg dietary

cholesterol, decrease 0.13 (true or false)

A

true

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5
Q

7 cycles and 8 acetyl coa

A

Acetyl coa

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6
Q

Beta oxidation produce

A

1 acetyl coa, 1 FADH2, 1 NADH

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7
Q

FA activated to acylcoa

A

acyl coa synthetase

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8
Q

Parent steroid in formation of

cholesterol

A

lanosterol

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9
Q

Role of leukotriene except

A

induce

sleep

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10
Q

APO B 100

A

LDL

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11
Q

Last stage of VLDL

A

LDL

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12
Q

Cholesterol excreted from liver as

A

bile salts

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13
Q

Inhibit PGHS1 and 2

A

aspirin

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14
Q

Carnitine deficiency uncommon

A

febrile seizure

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15
Q

Palmitate

A

106 ATP

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16
Q

Insulin increases the activity of

HMG CoA reductase

A

true

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17
Q

FA oxidation except

A

carboxylation

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18
Q

Biosynthesis of cholesterol

A

cytoplasm

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19
Q

Immediate substrate

A

acetylc oa

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20
Q

cleave alpha and beta

A

Thiolase

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21
Q

Cofactor LCAT

A

Apo A-I

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22
Q

Precursos of arachidonic acid

A

linoleic

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23
Q

Reverse cholesterol transport -

24
Q

10 yr old girl with carnitine

deficiency can’t produce

A

fatty acyl

carnitine

25
Ketogenesis - where
liver
26
Prostanoids
prostaglandin and | thromboxane
27
Apolipoprotein in HDL
A
28
Active
FFA
29
Dieatary fats in the intestines
pancreatic lipase
30
Cyclization of squalene
lanosterol
31
Outer mitochondrial membrane | transfer
carnitine palmitoyl | transferase I
32
Most abundant
cholesteryl ester
33
Diacylglycerol + acetyl coa
free acyl coa
34
Insulin activates or promotes | chuchu reductase - true or false
TRUE
35
Glucagon activates or promotes | something reductase - true or false
false
36
Alcohol produces
NADH
37
Lipoprotein lipase cofacto | inhibitorr
CIII
38
Free cholesterol from tissues | plasma HDL transported to liver - true or false
true
39
Role of leukotrienes except
induce sleep
40
Reduction of NADH ketogenesis
beta hydoxybutyryl acetoacetate
41
LPP
18
42
inc HMG-Coa reductase
Insulin
43
``` Hydrolyze arachidonic acid from membrane phospholipids - a. epi, b. thrombin, c. bradykinin d. AOTA ```
AOTA
44
FFA to acyl-coa (enzyme)
acyl-coa | synthetase
45
True of chylomicrons except
predominantly cholesterol (dapat TAG)
46
Predominant plasma lipid
Cholesteryl ester (36%)
47
Most active plasma lipid
Unesterified FA
48
Apo A
HDL
49
Inhibits PLA from forming eicosanoids:
Steroids
50
Oxidation of FA with odd number of Carbon yields?
Acetyl CoA + propionyl
51
TRUE/FALSE: Elevated levels of cholesterol in LDL and VLDL is related with atherosclerosis while high HDL levels have a protective effect.
True
52
Added to diacylglycerol to form TAG
fatty acyl coa?
53
Starting material for ketogenesis:
Acetoacetyl CoA
54
``` Stimulates the release of arachidonic acid from the membrane phospholipid A. Epinephrine B. Thrombin C. Bradykinin D. AOTA ```
D. AOTA
55
Cofactor for lipoprotein lipase
Apo CII
56
Condensation of 6 IPP requires how many ATP
18 ATP
57
Major protein of HDL, activates lecithin: cholesterol acyltransferase, LCAT:
Apo A-1