C17 Cytoskeleton Flashcards Preview

Biol 3310 > C17 Cytoskeleton > Flashcards

Flashcards in C17 Cytoskeleton Deck (25):
1

microtubules are attached to ?

centrosomes

2

intermediate filaments connect neighboring cells through ?

desmosomes

3

intermediate filaments structure

coiled coil coil coil

4

nuclear lamina is constructed from ?

intermediate filaments

5

two asymmetrical cytoskeletal structures

microtubules, actin

6

Interact with motor proteins ? (2)

actin and microtubules

7

microtubules move cargo using ?

dynein and kinesin

8

actin filaments interact with ? to provide movement

myosin

9

microtubules are composed of ?

tubulin

10

tubulin is added to this end of a microtubule

plus

11

first ring of tubulin subunit consists of ?

gamma-tubulin

12

? hydrolysis switches microtubules from grown to shrinkage

GTP

13

dynein moves (in/out)

in

14

kinesin moves (in/out)

out

15

Motor proteins use energy of ?

ATP

16

COP II is carried (in/out) by kinesin

out

17

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

in

18

cilia and flagella use ? for movement

microtubules

19

? filaments are involved in cell locomotion

actin

20

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

+

21

myosin 1 function

carry vesicles

22

mysoin 2 function

interact with actin

23

sarcomeres are assemblies of ? and ?

actin and myosin 2

24

ca++ triggers this in sarcomeres

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

25

Power stroke in sarcomeres occurs when

phosphate is released