Cytoskelton

Question 1

Which component of the cytoskeleton is responsible for the contractile ring during mitosis

Answer 1

Actin filaments

Question 2

__________ are transmembrane proteins that mediate cell to cell adhesion

Answer 2

Cadherins

Question 3

_________ facilitate cell-ECM adhesion

Answer 3

Integrins

Question 4

Microtubules are made up of what subunit

Answer 4

Tubulin

Question 5

The cloud which surrounds the centrioles is called

Answer 5

Pericentriolar cloud

Question 6

The microtubules start at _________ which is a component of paracenteriolar cloud

Answer 6

gamma-tubulin ring
complex

Question 7

_________ are a family of transmembrane proteins that are known for attaching itself to non-cellular surroundings

Answer 7

Integrins

Question 8

Where are actin filaments located

Answer 8

Under the membrane

Question 9

Which actin binding protein is associated with muscle contractions

Answer 9

Myosin

Question 10

Which filament network are microvilli associated with

Answer 10

Actin filaments

Question 11

What are the two types of intermediate filaments

Answer 11

Cytoplasmic and nuclear

Question 12

What are 3 cytoplasmic intermediate filaments

Answer 12

Keratins
Vimentin
Neurofilaments

Question 13

_________ form a structural framework inside the nuclear envelope

Answer 13

Nuclear lamina

Question 14

Cilia and flagella are formed by

Answer 14

Microtubules

Question 15

Which end of the Microtubules are capped?

Answer 15

(-) end

Question 16

Tubulin heterodimers are added to the growing Microtubule when_________and fall offs when_________

Answer 16

They are GTP bound; when they are GDP bound

Question 17

2 types of microtubule motor proteins

Answer 17

Kinesin
Dynein

Question 18

______moves cargo towards the + end

Answer 18

Kinesin

Question 19

________ moves cargo towards the (-) end

Answer 19

Dynein

Question 20

Cilia and flagella are both nucleated by one of the following:

A. Centrosomes
B. Basal bodies

Answer 20

B. basal bodies

Question 21

________causes cilia to move/slide and the protein_____ brings the cilium back to its straight position

Answer 21

ATP hydrolysis: nexin

Question 22

How many tubules does it take for a cilium to move?

What does each tubule contain?

Answer 22

2

A Dynein and ATPase

Question 23

The mitosis spindle during mitosis is formed by_______

Answer 23

Microtubules

Question 24

During the microtubule formation of the mitotic spindle, the (-) ends attach to the _______ and the (+) ends attach to the_______

Answer 24

centrosomes; Kinetochore

Question 25

Colchine prevents swelling by inhibiting______by binding Tubulin subunits of white blood cells to prevent it from_____to the infected area

Answer 25

Microtubule function; crawling