5. discuss about the narrow sense conception of cytoskeleton and the classification and function of each components

The narrow sense conception of cytoskeleton is introduced to protein fibres. These fibres are present inside the eukaryotic cells. This concept refers to the study of cytoskeleton.  Cytoskeleton maintains the cell shape. Cytoskeleton have two components. These are nuclear skeleton and cytoplasmic skeleton.

Nuclear skeleton consist of core layer, nuclear matrix and chromosomal skeleton. Cytoplasmic skeleton comprises of microtubules, microfilaments and intermediate filaments.

Explanation:

The narrow sense conception of cytoskeleton is related to protein fibre structure in eukaryotic cells. The cytoskeleton system comprises of nucleus skeleton and cytoplasmic skeleton.

The nucleus skeleton consist of chromosomal skeleton, nuclear matrix and core layer.

Nuclear Matrix: It organize DNA into the cell with the help of nuclear lamina.

Core layer: It is the inner layer which connects nuclear matrix and outside fibres. It forms a grid structure between nucleus and cytoplasm.

Chromosome Skeleton: It is involved in packaging of chromosomes.

The cytoplasmic filaments consist of intermediate filament, microtubules and microfilaments.

Intermediate Filaments: It provides mechanical support to plasma membrane.

Microtubules: It maintains shape of the cell. It is involved cell wall formation.

Microfilaments: It is involved in myofibrils formation, acrosomal reaction and cytoplamic splitting like processes.

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