WHAT IS CYTOSKELETON???

 CYTOSKELETON

DEFINITION;

CYTOSOL CONTAINS CYTOSKELETAL FABRIC FORMED OF;

👆 MICROFILAMENT

👆 MICROTUBULE

👆 INTERMEDIATE FILAMENT

MAIN PROTEIN;

THE MAIN PROTEINS THAT ARE PRESENT IN CYTOSKELETON ARE  TUBULIN,

 ACTIN, MYOSIN, TROPOMYOSIN AND OTHERS WHICH ARE ALSO PRESENT 

IN MUSCLES.

SPECIAL ORGANELLES;

SEVERAL CELL ORGANELLES ARE DERIVED FROM SPECIAL ASSEMBLIES

OF MICROTUBULES, LIKE CILIA, FLAGELLA, BASAL BODIES AND 

CENTRIOLES.

TYPES;

MICROTUBULES;

MICROTUBULES ARE LONG, UNBRANCHED, SLENDER TUBULIN

 PROTEIN STRUCTURE.

FUNCTION;

ONE VERY IMPORTANT FUNCTION OF MICROTUBULE IS THEIR ROLE IN

 THE ASSEMBLY AND DISASSEMBLY OF SPINDLE STRUCTURE DURING

 MITOSIS.

MICROFILAMENTS;

MICROFILAMENT ARE CONSIDERABLY MORE SLENDER CYLINDRES MADE

 UP OF CONTRACTILE ACTIN PROTEIN, LINKED TO THE INNER FACE OF 

PLASMA MEMBRANE. 

FUNCTION;

THEY ARE INVOLVED IN INTERNAL CELL MOTION.

INTERMEDIATE FILAMENT;

THEY HAVE DIAMETER IN BETWEEN THOSE OF MICROTUBULES AND

 MICROFILAMENTS.

FUNCTION;

THEY PLAY ROLE IN THE MAINTENANCE OF CELL SHAPE.