Although the myosin–actin interaction is typically associated with contractile movement, some forms of myosin are involved in moving cargo throughout the cell. The following data pertain to a myosin molecule moving a 6 μm-diameter vesicle along an actin track in the aqueous environment of the cytoplasm (viscosity = 0.01 g cm-1 s-1). The myosin undergoes five ATP hydrolysis cycles per second, moving 110 Å per cycle.
1.
What is the velocity of the myosin motor in cm sec-1? Assume that 1 Å = 10-8 cm.
