2.2.2 Lipids and Lipoproteins (Major classes of lipoproteins))

Question 1

Density:

<0.93

a. Chylomicron
b. VLDL
c. LDL
d. HDL
e. IDL

Answer 1

a

Question 2

Density:

0.93-1.006

a. Chylomicron
b. VLDL
c. LDL
d. HDL
e. IDL

Answer 2

b

Question 3

Density:

1.006-1.019

a. Chylomicron
b. VLDL
c. LDL
d. HDL
e. IDL

Answer 3

e

Question 4

Density:

1.019-1.063

a. Chylomicron
b. VLDL
c. LDL
d. HDL
e. IDL

Answer 4

c

Question 5

Density:

1.062 - 1.21

a. Chylomicron
b. VLDL
c. LDL
d. HDL
e. IDL

Answer 5

d

Question 6

Electrophoretic mobility:

Pre-beta

a. Chylomicron
b. VLDL
c. LDL
d. HDL
e. IDL

Answer 6

b

Question 7

Electrophoretic mobility:

Alpha

a. Chylomicron
b. VLDL
c. LDL
d. HDL
e. IDL

Answer 7

d

Question 8

Electrophoretic mobility:

Beta

a. Chylomicron
b. VLDL
c. LDL
d. HDL
e. IDL

Answer 8

c

Question 9

Electrophoretic mobility:

origin

a. Chylomicron
b. VLDL
c. LDL
d. HDL
e. IDL

Answer 9

a

Question 10

Major Component:

Cholesterol

a. Chylomicron
b. VLDL
c. LDL
d. HDL
e. IDL

Answer 10

c

Question 11

Major Component:

Protein 50%

a. Chylomicron
b. VLDL
c. LDL
d. HDL
e. IDL

Answer 11

d

Question 12

Major Component:

Tryglyerides (Endogenous

a. Chylomicron
b. VLDL
c. LDL
d. HDL
e. IDL

Answer 12

b

Question 13

Major Component:

Triglycerides (Exogenous)

a. Chylomicron
b. VLDL
c. LDL
d. HDL
e. IDL

Answer 13

a

Question 14

Apolipoproteins:

B48, C, E

a. Chylomicron
b. VLDL
c. LDL
d. HDL

Answer 14

a

Question 15

Apolipoproteins:

B100, C, E

a. Chylomicron
b. VLDL
c. LDL
d. HDL

Answer 15

b

Question 16

Apolipoproteins:

B100

a. Chylomicron
b. VLDL
c. LDL
d. HDL

Answer 16

c

Question 17

Apolipoproteins:

AI, AII, C, E

a. Chylomicron
b. VLDL
c. LDL
d. HDL

Answer 17

d

Question 18

Comments:

Transports endogenous triglycerides

a. Chylomicron
b. VLDL
c. LDL
d. HDL

Answer 18

b

Question 19

Comments:

Transports Exogenous triglycerides

a. Chylomicron
b. VLDL
c. LDL
d. HDL

Answer 19

a

Question 20

Comments:

Transports cholesterol to peripheral tissues

a. Chylomicron
b. VLDL
c. LDL
d. HDL

Answer 20

c

Question 21

Comments:

Facilitates reverse cholesterol transports (From th tissues back to the liver)

a. Chylomicron
b. VLDL
c. LDL
d. HDL

Answer 21

d

Question 22

Gold standard for lipoprotein analysis?

Answer 22

Ultracentrifugation / Density gradient centrifugation

Question 23

2 important methods for lipoprotein analysis?

Answer 23

Ultracentrifugation and electrophoresis

Question 24

Chylomicron has lower density than the water

T or F

Answer 24

T

Question 25

IDL is considered Major lipoprotein T or F

Answer 25

F Minor

Question 26

Arrangement of lipoproteins from least dense to most dense?

Answer 26

Chylomicrons>VLDL>LDL>HDL

Question 27

Lipoproteins travels from Cathode (-) to Anode (+) T or F

Answer 27

T

Question 28

Arrangement of lipoproteins in terms of mobility in electrophoresis from CATHODE (-) TO ANODE (+):

Answer 28

Chylomicrons>LDL>VLDL>HDL

Question 29

The most Triglyceride rich a. Chylomicron b. VLDL c. LDL d. HDL

Answer 29

a

Question 30

The triglyceride transported by chylomicrons is dietary (Exogenous) T or F

Answer 30

T

Question 31

The triglyceride carried by VLDL is synthesized by the ?

Answer 31

Liver

Question 32

Main determinant of cholesterol level?

Answer 32

LDL

Question 33

Known as atherogenic or may promote atherosclerosis

Answer 33

LDL

Question 34

most protein-rich lipoprotein

Answer 34

HDL

Question 35

A lipoprotein that serves as a scavenger that can remove cholesterol excess deposits.

Answer 35

HDL

Question 36

HDL deliver Cholesterol back to the liver so it can be use to synthesize ?

Answer 36

Bile

Question 37

Important in the saponification of digestion of dietary lipids in the intestine.

Answer 37

Bile

Question 38

chylomicrons are not taken up by the liver because of its huge size T or F

Answer 38

T

Question 39

Chylomicrons needs to be hydrolyze into remnants so it can be taken up by the liver T or F

Answer 39

T

Question 40

Enzyme catalyze the hydrolysis of chylomicrons, IDL, and VLDL a. Protein Lipase b. Lipoprotein lipase c. Lipidolipase d. Lipase

Answer 40

b

Question 41

Liver synthesizes the chylomicrons remnants into?

Answer 41

VLDL

Question 42

VLDL is hydrlyzes into smaller particle which is?

Answer 42

IDL

Question 43

IDL is also hydrolyzes in to much smaller particle which is?

Answer 43

LDL This can be easily taken up by the cell

Question 44

LDL is a metabolite of VLDL T or F

Answer 44

T

Question 45

Function of cholesterol in the body includes: - Synthesis of Steroid hormone - Synthesis of Vit D - Synthesis of Bile Which of the following does not belong?

Answer 45

None

Question 46

Why does VLDL migrate faster in electrophoresis?

Answer 46

It has higher magnitude of NEGATIVE charge

Question 47

What is the major lipid component (Excluding the protein) of the HDL? a. Triglyceride b. Phospholipids c. Fatty acids

Answer 47

Phopholipids