2835026
Description
Quiz by howcontrived, updated more than 1 year ago
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Created by howcontrived
almost 9 years ago
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Question 1
Question
Which of the following tissues contain insulin receptor?
Answer
-
Neurons
-
Skeletal myocytes
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Adipocytes
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Hepatocytes
-
None of these
Question 2
Question
When insulin binds to its receptor, it stimulates the translocation of _____________ - containing vesicles from the ____________ to the plasma membrane.
Answer
-
GLUT1; early endosome
-
GLUT3; active zone
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GLUT4; recycling endosome
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GLUT5; late endosome
-
None of these
Question 3
Question
Insulin stimulates the translocation of glucose permeases, leading to their insertion into the plasma membrane, in which tissues?
Answer
-
Musle
-
White Adipose
-
Neurons
-
None of these
Question 4
Question
Almost all protein synthesis begins here.
Answer
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On ribosomes
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In the nucleus
-
In the nucleoulus
-
In the smooth ER
-
None of these
Question 5
Question
Which of the following organelles are involved in the biosynthetic pathway?
Answer
-
The ER
-
Golgi
-
Secretory Vesicles
-
Early endosome
-
None of these
Question 6
Question
Which of the following organelles is a part of the endocytic pathway?
Answer
-
The plasma membrane
-
The ER
-
Late endosome
-
Golgi
-
None of these
Question 7
Question
Which of the following coat proteins is a part of the retrieval pathway?
Answer
-
COPI
-
COPII
-
Clathrin
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None of these
-
COPI and COPII only
Question 8
Question
Formation of a clathrin-coated vesicle requires which of the following?
Answer
-
Caveoilins
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Adaptor proteins
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ARF 1
-
Dynamin
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None of these.
Question 9
Question
In which organelle is ceramide synthesized?
Answer
-
rER
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sER
-
Golgi
-
Endosome
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None of these
Question 10
Question
Which of the following statements about glycolipids and sphingomyelins are true?
Answer
-
Both are synthesized from ceramide.
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Both contain saccharides.
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Glycolipids are synthesized in the sER whereas sphingomyelins are synthesized in the golgi.
-
Both contain a glycerol molecule.
-
None of these is correct.
Question 11
Question
Which of the following is a means by which the cell tags and targets proteins for inclusion in transport vesicles?
Answer
-
Specific amino acid sequences
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Oligosaccharide modifications
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Hydrophobic domains
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None of these
Question 12
Question
How is calcium transported into the sER?
Answer
-
Facilitated diffusion
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Ligand-gated channel
-
Direct active transport
-
None of these
Question 13
Question
How is calcium transported into a cell (across the plasma membrane)?
Answer
-
Passive diffusion
-
Facilitated diffusion
-
Direct active transport
-
None of these
Question 14
Question
Which of the following is correctly arranged in order of INCREASING pH (i.e. from acid to alkaline)?
Answer
-
Lysosome, cytosol, early endosome, late endosome
-
Cytosol, synaptic vesicle, recycling endosome, ER
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Late endosome, early endosome, lysosome, cytosol
-
None of these
Question 15
Question
Proteins targeted to the lysosome contain a __________________ tag.
Answer
-
KDEL
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Mannose-6-P
-
Phosphatidylinositol
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SAR-1
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None of these
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