Course

Cell Biology

Study Pack

Set 9 The Cytoskeleton And Cell Motility

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Question 1

(Multiple Choice)

Free
You use an ionic detergent to extract materials from a cell. When you do, much of the mRNA stays behind with the cytoskeleton, which is not solubilized/depolymerized by this treatment. What do these results mean?

A)The cytoskeleton denatures in ionic detergents.
B)The mRNA is solubilized by the ionic detergents.
C)The mRNA is anchored to the cytoskeleton.
D)The cytoplasm is anchored to the mRNA.
E)The cytoskeleton is destabilized by the ionic detergent.

Answer

Question 2

(Multiple Choice)

Free
In a growing plant cell, cellulose microfibrils are oriented _______ the direction of cell growth.

A)in the same direction as
B)perpendicular to
C)parallel to
D)diagonally to
E)horizontal to

Answer

Question 3

(Multiple Choice)

Free
Left or right handed spiral growth in Arabidopsis has been linked to all of the following proteins EXCEPT:

A)α tubulin
B)β tubulin
C)plant specific MAPs
D)actin
E)all of these proteins have been linked to spiral growth

Answer