Cytoskeleton Tutorial

Problem 2: Single Kind of Motor

Explain how a single kind of "motor" can cause movement of a wide variety of substances, including vesicles, chromosomes, proteins, etc.

A.	Nature has evolved many different mechanisms or motor proteins, each unrelated to the other and with independent mechanisms/including vesicles, chromosomes, proteins, etc.
	Incorrect. The exact opposite is really true. Nature invents a motor, and then uses it in many different ways. The family of kinesin genes all code for the same motor end, but have different receptors on the other end of the receptor so that different molecules, organelles, etc. can be moved along microtubules.