Thick and thin myofilaments have different compositions. For each descriptive phrase, indicate whether the filament is (a) thick or (b) thin.  ____ (1) contains actin ____ (2) contains ATPases ____...

Thick and thin myofilaments have different compositions. For each descriptive phrase, indicate whether the filament is

(a) thick or

(b) thin.

 ____ (1) contains actin

____ (2) contains ATPases

____ (3) attaches to the Z disc

 ____ (4) contains myosin

 ____ (5) contains troponin

 ____ (6) does not lie in the I band