C17 Cytoskeleton

Question 1

microtubules are attached to ?

Answer 1

centrosomes

Question 2

intermediate filaments connect neighboring cells through ?

Answer 2

desmosomes

Question 3

intermediate filaments structure

Answer 3

coiled coil coil coil

Question 4

nuclear lamina is constructed from ?

Answer 4

intermediate filaments

Question 5

two asymmetrical cytoskeletal structures

Answer 5

microtubules, actin

Question 6

Interact with motor proteins ? (2)

Answer 6

actin and microtubules

Question 7

microtubules move cargo using ?

Answer 7

dynein and kinesin

Question 8

actin filaments interact with ? to provide movement

Answer 8

myosin

Question 9

microtubules are composed of ?

Answer 9

tubulin

Question 10

tubulin is added to this end of a microtubule

Answer 10

plus

Question 11

first ring of tubulin subunit consists of ?

Answer 11

gamma-tubulin

Question 12

? hydrolysis switches microtubules from grown to shrinkage

Answer 12

GTP

Question 13

dynein moves (in/out)

Answer 13

in

Question 14

kinesin moves (in/out)

Answer 14

out

Question 15

Motor proteins use energy of ?

Answer 15

ATP

Question 16

COP II is carried (in/out) by kinesin

Answer 16

out

Question 17

cop I and clathrin carried (in/out) by kinesin

Answer 17

in

Question 18

cilia and flagella use ? for movement

Answer 18

microtubules

Question 19

? filaments are involved in cell locomotion

Answer 19

actin

Question 20

myosin moves towards the (+/-) end of actin

Answer 20

+

Question 21

myosin 1 function

Answer 21

carry vesicles

Question 22

mysoin 2 function

Answer 22

interact with actin

Question 23

sarcomeres are assemblies of ? and ?

Answer 23

actin and myosin 2

Question 24

ca++ triggers this in sarcomeres

Answer 24

movement of troponin c on actin, which shifts tropomyosin and allows myosin to interact with actin

Question 25

Power stroke in sarcomeres occurs when

Answer 25

phosphate is released