Question

Cyclosis is caused by activity of

• A. Microtubules
• B. Microfilaments
• C. Intermediate filaments
• D. All of the above

Answer 1

Answer: (B)

Microfilaments

• Cyclosis is caused by the activity of microfilaments.
• Microfilaments (actin filaments) are the filaments that are present in the cytoplasm of the cells (eukaryotic) and it forms a part of the cytoskeleton.
• It is made up of polymers of actin.
• These microfilaments cause cytoplasmic streaming or protoplasmic streaming which is the movement of the cytoplasm within a cell.
• When one of the protein is fixed on a microfilament then, the motor proteins can move organelles and molecules within the cytoplasm.
• So, the correct answer is 'Microfilaments'.