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Question
Describe the structure of the following with the help of a labelled diagram.
Centrosome
Solution
Centrosome is an organelle usually containing two cylindrical structures called centrioles. Amorphous pericentriolar materials envelop them. Within a centrosome, the centrioles are positioned perpendicular to one another. They consist of nine uniformly spaced tubulin protein peripheral fibrils. Every peripheral fibril is made up of three. The nearby triplets are connected as well. Radial spokes composed of protein connect the centriole hub to the peripheral triplets' tubules.
Centrioles: Each centrosome contains a pair of centrioles, cylindrical structures oriented perpendicularly to each other. Each centriole is composed of microtubules arranged in nine triplets.
Microtubules: These are the structural components of centrioles, which create a cylindrical form by arranging triplet microtubules in nine different configurations..
Pericentriolar Material (PCM): Surrounding the centrioles is a matrix of proteins called the pericentriolar material, which assists in microtubule nucleation and anchoring.
