#Question id: 2432
#Unit 2. Cellular Organization
Which of the following parts of myosin interact(s) with actin?
a. head b. neck c. tail
d. essential light chain e. regulatory light chain
#Question id: 2433
#Unit 2. Cellular Organization
All types of myosins
a. bind and hydrolyze ATP.
b. bind actin filaments.
c. form dimers.
d. contain an associated myosin light chain.
e. move toward the (+) end of an actin filament.
#Question id: 2434
#Unit 2. Cellular Organization
The contractile ring
#Question id: 2435
#Unit 2. Cellular Organization
The structural and functional unit of skeletal muscle is the
#Question id: 2436
#Unit 2. Cellular Organization
Cell locomotion
a. requires coordination of motions generated in different regions of the cell.
b. occurs only in cells with a defined polarity.
c. may be controlled by signaling pathways.
d. occurs in a defined sequence of steps.
#Question id: 2437
#Unit 2. Cellular Organization
Membrane extension involves
a. bending actin filaments.
b. myosin II.
c. the Arp2/3 nucleation of new filaments.
d. actin depolymerization.
e. actin polymerization.