Lipoprotein Metabolism

Beschreibung

Year 2 (Lipids) Quiz am Lipoprotein Metabolism, erstellt von gina_evans0312 am 24/01/2014.
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Quiz von gina_evans0312, aktualisiert more than 1 year ago
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Erstellt von gina_evans0312 vor fast 11 Jahre
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Zusammenfassung der Ressource

Frage 1

Frage
When the LDL first binds to the receptor, what is internalised?
Antworten
  • The lipoprotein
  • The bound receptor
  • The antigens

Frage 2

Frage
An uncoated clathrin vesicle has lost the clathrin it was previously coated with
Antworten
  • True
  • False

Frage 3

Frage
What happens to the LDL receptors once they've been internalised?
Antworten
  • They're removed the vesicle and returned to the cell surface
  • They're removed the vesicle and destroyed
  • They're removed the vesicle and altered into different receptors

Frage 4

Frage
How is the LDL broken down?
Antworten
  • pH change
  • Salinity change
  • Inc in protease concentration

Frage 5

Frage
LDL's are broken down into amino acids, fatty acids and triacylglycerols
Antworten
  • True
  • False

Frage 6

Frage
Fatty acid oxidation is done in the mitochondria
Antworten
  • True
  • False

Frage 7

Frage
The cleavage of 2C from a fatty acid chain does what?
Antworten
  • Releases oxidative energy
  • Releases 2C for substrate dependent oxidation

Frage 8

Frage
VDL's are created in the small intestine, chylomicrons in the liver
Antworten
  • True
  • False

Frage 9

Frage
Name the two enzymes that allow lipids to be removed from lipoproteins for use in the cell
Antworten
  • Lipoprotein lipase
  • Lecithin-Cholesterol Acetyl Transferase

Frage 10

Frage
Removal of lipids from fatty acids leave remenants behind in the blood
Antworten
  • True
  • False

Frage 11

Frage
Two things can happen to these remnants, what are they?
Antworten
  • Uptake into cells for conversion into other lipoproteins
  • Conversion to LDL's in the blood
  • Conversion to VDL's in the intestines

Frage 12

Frage
What is the role of the Overflow Pathway?
Antworten
  • Conversion of LDL's into HDL's so they can be returned to the liver
  • Conversion of remnants to LDL's that stick to arterial walls
  • Conversion of Chylomicrons to VLDL
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