An 18,000-watt radio station transmits at 680 kHz. Calculate the energy of a single photon at the transmitted frequency. 4.5 x 10 -28 J/photon
1.2 x 10 -29 J/photon
4.5 x 10 -31 J/photon

Do the following statements describe actin, myosin, both of the proteins or neither of the proteins? (a) contains a binding site for calcium (b) found in the i band (c) exists in a globular (g) form and a filamentous (f) form (d) contains a binding site for atp (e) is a component of the thin filament (f) is a component of the thick filament