DHN 311 Final Exam Tested
Questions Reviewed And Revised
With Correct Answers
Already Passed!!
1. Plasma lipoproteins are composed of __ and ___ - ANSWER
proteins
lipids and
2. What are the four categories of spherical macromolecular complexes? -
ANSWER
1. chylomicron...
DHN 311 Final Exam Tested
Questions Reviewed And Revised
With Correct Answers
Already Passed!!
1. Plasma lipoproteins are composed of __ and ___ - ANSWER lipids and
proteins
2. What are the four categories of spherical macromolecular complexes? -
ANSWER 1. chylomicron
2. very low density lipoproteins
3. low density lipoproteins
4. high density lipoproteins
3. Hhow do the 4 spherical macromolecular complexes differ? - ANSWER
in lipid and protein composition, size, density, and site of origin
4. Lipoproteins have a lipid core which contains 2 unique things - ANSWER 1.
TAGs
2. cholesterol esters
5. Chylomicrons are the ____ in density and ___ in size - ANSWER lowest,
largest
,6. Chylomicrons contain the ___ % of lipid and the ____ % of protein - ANSWER
highest, lowest
7. VLDLs are more ___ than chylomicrons - ANSWER dense
8. VLDLs have higher ratios of ___ and ___ - ANSWER protei and lipids
9. what are ILDs - ANSWER intermediate density lipoproteins
10. ILDs are transient molecules when going from ___ to ___ - ANSWER
VLDL to LDL
11. LDLs are more dense than ___ - ANSWER VLDLs
12. HDLs are the most ____ - ANSWER dense
13. What are each lipoprotein complexes associated with? - ANSWER specific
proteins called apolipoproteins
14. What are three functions of apolipoproteins ? - ANSWER 1. structural
2. provide a recognition site for cell-surface receptors
3. serve as activators or coenzymes for enzymes
, 15. How are apolipoproteins divided? - ANSWER by structure and function
into classes A-E
16. Where are chylomicrons assembled? - ANSWER in intestinal mucosal
cells
17. Where do chylomicrons first appear in circulation? - ANSWER in the
lymphatic vessels of the mesenteric region
18. Where do chylomicrons deliver dietary lipids to? - ANSWER peripheral
tissues such as muscle and adipose
19. What is a chylomicron remnant? - ANSWER what remains after a lipid is
dropped off
20. What is the main characteristic of a chylomicron remnant? - ANSWER
they are very dense
in the mucosal cell, where are chylomicrons assembled? - ANSWER in the
rough ER and the Golgi apparatus
which apolipoprotein is unique to chylomicrons? - ANSWER apo B-48
what is the app B-48 attached to? - ANSWER the nascent chylomicron
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