Motor proteins provide for molecular motion in cells by interacting with what types of cellular structures?
A) membrane proteins of the inner nuclear envelope
B) free ribosomes and ribosomes attached to the ER
C) components of the cytoskeleton
D) cellulose fibres in the cell wall

Question

Quizplus · Accepted Answer

Motor proteins interact with components of the cytoskeleton, such as microtubules and actin filaments, to provide for molecular motion in cells. They move along these structures to transport cargo, position organelles, and generate forces for cellular movements. Motor proteins do not interact with membrane proteins of the inner nuclear envelope, free ribosomes and ribosomes attached to the ER, or cellulose fibres in the cell wall.

Motor Proteins Provide for Molecular Motion in Cells by Interacting