Each centriole has a cart wheel orga...

Each centriole has a cart wheel organisation having a whorl of tubulin fibrils at periphery. These peripheral fibrils are composed of how many microtubules?

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In centriole each peripheral fibril is a_____.

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Find incorrect statement with regard to centrosome and centrioles :- (a) Centrosomes are surrounded by amorphous pericentriolar material (b) In centrosome, bothe centrioles lie parallel to each other in which each has an organisation like the cartwheel ( c ) Centrioles are made up of nine unevenly spaced peripheral fibrils of tubulin (d) Hub is the central proteinaceous part of centriole ( e )Proteinaceous radial spokes connect hub to peripheral triplets

Centriole is made of nine unevenly spaced peripheral fibrils of tubuline protein

Each muscle is made of many long, cylindrical fibres arranged in parallel arrays. These fibres are composed of numerous fine fibrils, called

How many statements are incorrect about centrosome ? (i) Peripheral microtubules are arranged as triplet (ii) Centrioles are not self duplicating units (iii) Peripheral microtubules are linked to each other by radial spokes (iv) Central part does not have any microtubules

Both centrioles in a centrosome lie .... ( i ) .... to each other and each of them contains..... ( ii ) ...... Peripheral fibril with .... ( iii ) .... arrangement of microtubules.

Identify the correct statement w.r.t. the given cell A. Concerned with lipid and steroidal hormone synthesis B. Outer non- living rigid structure which gives shape to the cell and protects from mechanical damage and infaction . C. Both lie perpendicular to each other and each has an organisation like the cart wheel . D. Responsible for trapping light energy for the synthesis of sugar. E. Present in cells actively involved in protein synthesis and secretion. F. Spherical structures rich in hydrolytic enzymes.

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