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Histology > Tissues > Flashcards

Tissues Flashcards

1
Q

How many nuclei do SM cells have?

A

Multiple nuclei

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2
Q

More than half of cell volume is occupied by _________?

A

Cytosol

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3
Q

The cytosol is where __________ synthesis takes place

A

Protein synthesis

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4
Q

Cytosol contains everything in the cell except for the _______ and the _______

A

Cytoskeleton and the Membrane bound organelles

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5
Q

Microfilaments are made of…

A

Actin

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6
Q

Microtubules are made of

A

Tubulin

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7
Q

Give examples of motor proteins

A

Dynein
Kinesin
Myosins

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8
Q

_________ filaments are clustered around the inside of the cell membrane, circling the inside

A

Actin

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9
Q

____________ filaments rádiate out from the nucleus

A

Microtubule

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10
Q

Order of thickness of the cytoskeletal filaments?

A

Microtubules - thickest
Intermediate filaments in between
Microfilaments - thinnest

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11
Q

Microfilaments have a _________ ________ structure

A

Double helix

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12
Q

IF’s have a ________ structure

A

2x antiparallel helices/diners forming tetramers

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13
Q

Microtubules are made of (composition)?

A

Alpha and beta tubulin

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14
Q

Microtubules have a structure due to ______________ made of ________ subunits

A

Protofilaments

Tubulin

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15
Q

The most abundant protein in eukaryotic cells is

A

Actin

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16
Q

Actin is __________ stranded

A

Double

17
Q

Where is actin found

A

Close to the PM

18
Q

Actin structures are controlled by which Rho GTP bonding proteins?

A

Rho itself
Rac
Cdc42

19
Q

What is Rho for

A

Contractile acto-myosin filaments

20
Q

What is Rac for?

A

Lamellipodia

21
Q

What is cdc42 for?

A

Filopodia

22
Q

Since actin filaments are readily disassembled/assembled they are called _________?

A

LABILE

23
Q

Microvilli contain actin

A

Yep

Histology (3 decks)

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