Pregunta 1
Pregunta
Which trafficking pathway is highlighted in the picture?
Respuesta
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Biosynthetic pathway
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Endocytic pathway
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Secretory pathway
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Nuclear export pathway
Pregunta 2
Pregunta
The depicted trafficking pathway is regulated by cellular signals.
Pregunta 3
Pregunta
Which experiment is a genetic approach to characterize the components and the molecular mechanism of the endomembrane system?
Pregunta 4
Pregunta
Which experiments make use of microsomes to study the endomembrane system?
Pregunta 5
Pregunta
Which is the organelle with the largest surface area?
Respuesta
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Golgi
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Endoplasmic reticulum
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Plasma membrane
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Nucleus
Pregunta 6
Pregunta
The signal sequence is a short stretch of [blank_start]hydrophobic[blank_end] amino acids at the [blank_start]N-terminus[blank_end] of a nascent protein that serves as an [blank_start]ER-targeting[blank_end] signal.
Respuesta
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hydrophobic
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hydrophilic
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N-terminus
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C-terminus
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ER-targeting
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nuclear export
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Golgi-targeting
Pregunta 7
Pregunta
SRP stands for "[blank_start]signal recognition particle[blank_end]".
Pregunta 8
Pregunta
Which of the following is a multi-protein complex with an hour-glass shaped aqueous pore?
Pregunta 9
Pregunta
TMD stands for "[blank_start]transmembrane domain[blank_end]".
Pregunta 10
Pregunta
TMD is a short stretch of hydrophobic amino acids which serves as a [blank_start]stop transfer sequence[blank_end].
Pregunta 11
Pregunta
UPR ([blank_start]unfolded protein response[blank_end]) initiates pathways that lead to either the production of more chaperone protein or a global reduction in protein synthesis to alleviate ER stress.
Pregunta 12
Pregunta
The process in which misfolded proteins are shuttled out of the ER to the [blank_start]cytosol[blank_end] where the oligosaccharide chain is removed and the protein is degraded in the [blank_start]proteasome[blank_end] is called [blank_start]ERAD[blank_end] ([blank_start]ER-associated degradation[blank_end]).
Pregunta 13
Pregunta
During core modification of a glycoprotein, the last remaining glucose is removed by
Respuesta
-
Glycosidase I
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Glycosidase II
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Glycosidase III
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Calnexin
Pregunta 14
Pregunta
UGGT is an ER chaperone which recognizes [blank_start]hydrophobic[blank_end] regions of misfolded proteins and tags them for refolding by adding back a [blank_start]glucose[blank_end] molecule.
Respuesta
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hydrophobic
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negatively charged
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hydrophilic
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glucose
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fatty acid
Pregunta 15
Pregunta
In the endomembrane system, the new membrane can only arise from the existing membrane.
Pregunta 16
Pregunta
According to current knowledge, which of the following are not components of the endomembrane system?
Respuesta
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Nucleus
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Golgi
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ER
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Lysosome
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Endosome
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Clathrin-coated vesicle
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Mitochondria