Kinesin motor proteins use ATP to:
A)carry vesicles along a microtubule within a cell in a minus-to-plus direction.
B)carry vesicles along a microfilament within a cell in a minus-to-plus direction.
C)carry vesicles along a microtubule within a cell in a plus-to-minus direction.
D)carry vesicles along a microfilament within a cell in a plus-to-minus direction.
E)slide along microfilaments to contract muscle cells.

Question

Quizplus · Accepted Answer

Kinesin motor proteins are responsible for movement of vesicles and organelles along microtubules within a cell in a minus-to-plus direction. The energy for this movement comes from ATP hydrolysis, in which the kinesin molecule binds to ATP, releases ADP and uses the energy released to move along the microtubule. Option A describes this process accurately.

Kinesin Motor Proteins Use ATP To