CH 9: The Nucleus - (Quiz Mode) Flashcards

1
Q

Small GTP-binding protein involved in Nuclear Import + Export.

Karyopherin
Nuclear Export Signal
Importin
Euchromatin
Ran
A

Ran

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2
Q

Large structure forming a Transport Channel THRU the Nuclear Envelope.

Nuclear Membrane
Lamin
Heterochromatin
Nuclear Pore Compex
Ran
A

Nuclear Pore Compex

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3
Q

Decondensed, Transcriptionally ACTIVE Interphase Chromatin.

Euchromatin
Exportin
Lamin 
Nucleolar Organizing Region
Nuclear Membrane
A

Euchromatin

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4
Q

Discrete Organelle w/in Nucleus.

Nucleolus
Karyopherin
Nuclear Envelope
Nuclear Body
Importin
A

Nuclear body

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5
Q

Karyopherin that RECOGNIZES Nuclear Localization Signals & DIRECTS Nuclear Import.

Lamin
Karyopherin
Nuclear Transport Receptor
Importin
Small Nucleolar RNA (snoRNA)
A

Importin

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6
Q

A Nuclear Transport Receptor.

nuclear envelope
replication factory
karyopherin 
exportin
nuclear membrane
A

Karyopherin

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7
Q

A small RNA present in the nucleolus that functions in pre-rRNA processing.

Ran
Lamin
Small Nucleolar RNA(snoRNA)
Nuclear Lamina
Nuclear Transport Receptor
A

Small Nucleolar RNA(snoRNA)

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8
Q

An amino acid sequence that targets proteins for transportation from the cytoplasm to the nucleus.

Karyopherin
Nuclear Localization Signal (NLS)
Nucleolar Organizing Region (NOR)
Nuclear Body
Ran
A

Nuclear Localization Signal (NLS)

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9
Q

The Nuclear Site of rRNA Transcription, Processing, & Ribosome assembly.

nucleolar organizing region
nucleolus
small nucleolar RNA (snoRNA)
nuclear membrane
nuclear body
A

Nucleolus

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10
Q

One of the membranes forming the nuclear envelope

importin
nuclear membrane
nuclear body
karyopherin
nuclear transport receptor
A

Nuclear Membrane

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11
Q

Condensed, Transcriptionally INACTIVE Chromatin.

nuclear body
heterochromatin
nuclear membrane
nuclear pore complex
karyopherin
A

Heterochromatin

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12
Q

A Protein that RECOGNIZES Nuclear Localization Signals & MEDIATES Transport ACROSS the Nuclear Envelope.

Nuclear Transport Receptor (NTR)
Nuclear Lamina
Nuclear Localization Signal (NLS)
Nuclear Envelope
Nuclear Export Signal (NES)
A

Nuclear Transport Receptor (NTR)

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13
Q

A meshwork of lamin filaments providing structural support to the nucleus.
[Click the matching term below]

Exportin
Nuclear Lamina
Nuclear Pore Complex (NPC)
Euchromatin
Small Nucleolar RNA (snoRNA)
A

Nuclear Lamina

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14
Q

An intermediate filament protein that FORMS the Nuclear Lamina.

nuclear membrane
lamin
replication factory
nuclear export signal
heterochromatin
A

Lamin

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15
Q

A large complex containing clustered sites of DNA replication in Eukaryotic cells.

nuclear pore complex
nuclear envelope
nuclear body
replication factory
nucleolus
A

Replication Factory

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16
Q

A chromosomal region containing the genes for ribosomal RNAs.

euchromatin
nucleolar organizing region 
replication factory
heterochromatin
nuclear transport receptor
A

Nuclear Organizing Region (NOR)

17
Q

An amino acid sequence that targets proteins for transport from the Nucleus to the Cytosol.

lamin
heterochromatin
nucleolus
nuclear body
nuclear export signal
A

Nuclear Export Signal (NES)

18
Q

A Karyopherin that recognizes nuclear export signals & directs transport FROM the Nucleus ⟶ Cytosol.

nuclear membrane
exportin
Ran
nuclear pore complex
nuclear transport receptor
A

Exportin

19
Q

The barrier separating the Nucleus from the Cytoplasm, composed of an Inner & Outer Membrane, a Nuclear Lamina, & Nuclear Pore Complexes.

nuclear envelope
karyopherin
replication factory
importin
nuclear membrane
A

Nuclear Envelope