Purchase Solution

The cytoskeleton and cell motility

Not what you're looking for?

Ask Custom Question

Because cytoplasmic vesicles are seen to move in both directions within an axon, can you conclude that some microtubules are oriented with their plus end facing the axon terminus and others oriented with the opposite polarity?

Purchase this Solution

Solution Summary

The cytoskeleton and cell motility are examined.

Solution Preview

No I'm sorry that is not a correct assumption. Microtubules within the neuron are organized such that the microtubule ends closest to the cell body have a relative negative charge or polarity while the at the axonal end microtubules have a relative positive charge. This polarity is consistent because the polarity is a result of microtubule formation from the center cell body to the outer reaches of the termini.

What allows for vesicles to move either way along the microtubules is due to two distinctly different "carrier proteins" ...

Purchase this Solution

Free BrainMass Quizzes
How Much Do You Know About Genetic Inheritance?

Most of us studied the basics of dominant and recessive genes at some point. However, genetics are much more complicated than this. How far beyond the basics does your knowledge go?

Biochemistry Basics

A refresher quiz to test your knowledge of basics concepts of biochemistry.

Labor Comfort Measures

Do you know how to comfort someone in labor?

Infant Development: Sleep

How much do you know about infant sleep? Test your knowledge with this quiz.

Breast Milk and Breastfeeding

How much do you know about breast milk and breastfeeding? Double check your knowledge level with this quiz!