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Earn 100

Arrange the different layers of plant cell wall and from outside to inside
This layer is capable of growth and diminishes gradually as the cell matures
Formed towards membrane side of the cell
This layer holds or glues different neighbouring cells together
(a)
(b)
(c)
(d)

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Important Questions on Cell : The Unit of Life
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[A] The content of nucleolus is continuous with the rest of the nucleoplasm
[B] Nucleolus is not a membrane bound structure

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EASY
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Read the following statements and choose the correct option.
Statement A: No organelles, like the ones in eukaryotes, are found in prokaryotic cells except for ribosomes.
Statement B: Fimbriae are known to help in attaching the bacteria to rocks in streams and also to the host tissue.

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(i) [A]_____ refers to a chain of ribosomes attached to a single mRNA
(ii) Cyanobacteria has membranous extensions into the cytoplasm called [B] _____ which contain pigments
(iii) [C] _____ are small bristle like fibres sprouting out of the bacterial cell that helps in attachment

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Mitochondria, Cell wall, Ribosomes, Centrioles, Microbodies, Plastids, Endoplasmic Reticulum |
How many of the above are present in both higher plant and animal cells?

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Column A | Column B | ||
i | Basal body | a | microtubular organisation |
ii | Axoneme | b | Centriole like structure |
iii | Centrosome | c | Core of flagellum |
d | Spindle fibre formation during cell division | ||
e | microtubular organisation |

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(a) It is capable of independent existence
(b) It has various organelles to ensure independent living
(c) It can perform the essential functions of life

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