Lipoprotein Metabolism

Descrição

Year 2 (Lipids) Quiz sobre Lipoprotein Metabolism, criado por gina_evans0312 em 24-01-2014.
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Quiz por gina_evans0312, atualizado more than 1 year ago
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Criado por gina_evans0312 mais de 10 anos atrás
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Resumo de Recurso

Questão 1

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

Questão 2

Questão
An uncoated clathrin vesicle has lost the clathrin it was previously coated with
Responda
  • True
  • False

Questão 3

Questão
What happens to the LDL receptors once they've been internalised?
Responda
  • 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

Questão 4

Questão
How is the LDL broken down?
Responda
  • pH change
  • Salinity change
  • Inc in protease concentration

Questão 5

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

Questão 6

Questão
Fatty acid oxidation is done in the mitochondria
Responda
  • True
  • False

Questão 7

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

Questão 8

Questão
VDL's are created in the small intestine, chylomicrons in the liver
Responda
  • True
  • False

Questão 9

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

Questão 10

Questão
Removal of lipids from fatty acids leave remenants behind in the blood
Responda
  • True
  • False

Questão 11

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

Questão 12

Questão
What is the role of the Overflow Pathway?
Responda
  • 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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