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Discuss briefly the role of nucleolus in the cells actively in
Biology Exemplar
Biology Exemplar

Class 11

NCERT Exemplar

Publisher:
NCERT
Subject:
Biology
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3

Chapter 3: Plant Kingdom

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4

Chapter 4: Animal Kingdom

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5

Chapter 5: Morphology of Flowering Plants

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6

Chapter 6: Anatomy of Flowering Plants

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Chapter 7: Structural Organization in Animals

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Chapter 8: Cell: The Unit of Life

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What is the feature of a metacentric chromosome?
Q2
Discuss briefly the role of nucleolus in the cells actively involved in protein synthesis. 
Q3
Explain the association of carbohydrate to the plasma membrane and its significance.
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9

Chapter 9: Biomolecules

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Chapter 10: Cell Cycle and Cell Division

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11

Chapter 11: Transport in Plants

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12

Chapter 12: Mineral Nutrition

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13

Chapter 13: Photosynthesis in Higher Plants

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14

Chapter 14: Respiration in Plants

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15

Chapter 15: Plant Growth and Development

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Chapter 16: Digestion and Absorption

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17

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18

Chapter 18: Body Fluids and Circulation

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19

Chapter 19: Excretory Products and their Elimination

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Chapter 20: Locomotion and Movement

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21

Chapter 21: Neural Control and Coordination

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22

Chapter 22: Chemical Coordination and Integration

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Discuss briefly the role of nucleolus in the cells actively involved in protein synthesis. 

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Discuss briefly the role of nucleolus in the cells actively involved in protein synthesis. 
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Nucleolus is the round, naked and a slightly irregular structure, which is attached to the chromatin at a specific region called as Nucleolar Organizer Region (NOR).
Nucleolus was first discovered by Fontana (1781). 
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(i) Nucleolus is the chief site for the ribosomal RNA synthesis.
(ii) It is the centre for the formation of ribosome components.
(iii) It is the colloidal complex that fills the nucleus.
(iv) It combines RNA with proteins to produce ribosomal sub-units. After their formation, the ribosomes sub-units pass out and get established in the cytoplasm.
(v) It also receive and store ribosomal proteins formed in the cytoplasm.
(vi) These ribosomal proteins formed are the sites for protein synthesis in the cell.
(vii) Nucleolus is essential for spindle formation during nuclear division.
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Question Text
Discuss briefly the role of nucleolus in the cells actively involved in protein synthesis. 
TopicCell: The Unit of Life
SubjectBiology
ClassClass 11
Answer TypeText solution:1
Upvotes66