132.In the transmission electron micrograph of skeletal muscle shown
below, which of the following is true of the zone labeled C?
220 Anatomy, Histology, and Cell Biology
a. It defines the sarcomere
b. Thin filaments are anchored to this structure
c. This structure bisects the H band and is formed predominantly of creatine
kinase
d. No overlap of thick and thin filaments occurs in this zone
e. This portion of the A band consists solely of the rodlike portions of myosin
133.The mechanochemical enzyme that can be found on the surfaces of
cellular organelles where it mediates movement toward the plus end of
microtubules is which of the following?
a. Myosin (myosin II)
b. Minimyosin (myosin I)
c. Dynein
d. Kinesin
e. Filamin