Questão 1
Questão
Which trafficking pathway is highlighted in the picture?
Responda
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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
Questão 2
Questão
The depicted trafficking pathway is regulated by cellular signals.
Questão 3
Questão
Which experiment is a genetic approach to characterize the components and the molecular mechanism of the endomembrane system?
Questão 4
Questão
Which experiments make use of microsomes to study the endomembrane system?
Questão 5
Questão
Which is the organelle with the largest surface area?
Responda
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Golgi
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Endoplasmic reticulum
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Plasma membrane
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Nucleus
Questão 6
Questão
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.
Responda
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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
Questão 7
Questão
SRP stands for "[blank_start]signal recognition particle[blank_end]".
Questão 8
Questão
Which of the following is a multi-protein complex with an hour-glass shaped aqueous pore?
Questão 9
Questão
TMD stands for "[blank_start]transmembrane domain[blank_end]".
Questão 10
Questão
TMD is a short stretch of hydrophobic amino acids which serves as a [blank_start]stop transfer sequence[blank_end].
Questão 11
Questão
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.
Questão 12
Questão
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]).
Questão 13
Questão
During core modification of a glycoprotein, the last remaining glucose is removed by
Responda
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Glycosidase I
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Glycosidase II
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Glycosidase III
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Calnexin
Questão 14
Questão
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.
Responda
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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
Questão 15
Questão
In the endomembrane system, the new membrane can only arise from the existing membrane.
Questão 16
Questão
According to current knowledge, which of the following are not components of the endomembrane system?
Responda
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Nucleus
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Golgi
-
ER
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Lysosome
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Endosome
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Clathrin-coated vesicle
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Mitochondria