503262
Description
Quiz by gina_evans0312, updated more than 1 year ago
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Created by gina_evans0312
over 10 years ago
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Question 1
Question
When the LDL first binds to the receptor, what is internalised?
Answer
-
The lipoprotein
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The bound receptor
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The antigens
Question 2
Question
An uncoated clathrin vesicle has lost the clathrin it was previously coated with
Answer
- True
- False
Question 3
Question
What happens to the LDL receptors once they've been internalised?
Answer
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They're removed the vesicle and returned to the cell surface
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They're removed the vesicle and destroyed
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They're removed the vesicle and altered into different receptors
Question 4
Question
How is the LDL broken down?
Answer
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pH change
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Salinity change
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Inc in protease concentration
Question 5
Question
LDL's are broken down into amino acids, fatty acids and triacylglycerols
Answer
- True
- False
Question 6
Question
Fatty acid oxidation is done in the mitochondria
Answer
- True
- False
Question 7
Question
The cleavage of 2C from a fatty acid chain does what?
Answer
-
Releases oxidative energy
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Releases 2C for substrate dependent oxidation
Question 8
Question
VDL's are created in the small intestine, chylomicrons in the liver
Answer
- True
- False
Question 9
Question
Name the two enzymes that allow lipids to be removed from lipoproteins for use in the cell
Answer
-
Lipoprotein lipase
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Lecithin-Cholesterol Acetyl Transferase
Question 10
Question
Removal of lipids from fatty acids leave remenants behind in the blood
Answer
- True
- False
Question 11
Question
Two things can happen to these remnants, what are they?
Answer
-
Uptake into cells for conversion into other lipoproteins
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Conversion to LDL's in the blood
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Conversion to VDL's in the intestines
Question 12
Question
What is the role of the Overflow Pathway?
Answer
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Conversion of LDL's into HDL's so they can be returned to the liver
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Conversion of remnants to LDL's that stick to arterial walls
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Conversion of Chylomicrons to VLDL
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