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Earn 100
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.
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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Important Questions on Cell : The Unit of Life
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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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The possible structure of plasma membrane was deduced from chemical studies in _____A._____ Cell membrane is composed of _____B_____ that are arranged in a bilayer. The most widely accepted model of plasma membrane is _____C_____ proposed by _____D_____.
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| Bacteria, Ostrich egg, Mycoplasma, Human RBC |
