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