The upcoming discussion will update you about the differences between Microfilaments and Microtubules.

Difference # Microfilaments:

1. They are contractile.

2. They do not possess longitudinal subunits.

3. Microfilaments are solid structures.

4. Microfilaments are made up of actin protein.

5. The diameter of a microfilament is 6 nm.

6. They occur below cell membrane and at the interphase of plasmagel-plasmasol.

7. Microfilaments are believed to cause cyto­plasmic streaming.

8. They take part in endocytosis.

Difference # Microtubules:

1. They are non-contractile though change in length can occur through assembly and disassembly of constituent proteins.

2. A microtubule contains 13 proto-filaments.

3. They are hollow tubules.

4. Microtubules are formed of α and β tubulin.

5. The diameter of a microtubule is 25 nm,

6. Microtubules occur in centrioles, basal bodies, cilia/flagella, astral rays, spindle fibre.

7. Microtubules cause microcirculation by directing vesicles to particular direction.

8. Microtubules have no role in endocytosis but direct endosomes in particular direction.

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