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Question
Which of the following are non cellular organisms that are characterised by having an inert crystalline structure outside the living cell?
Which of the following are non cellular organisms that are characterised by having an inert crystalline structure outside the living cell?
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Solution
The correct option is A Viruses
Viruses are non-cellular organisms that are characterised by having an inert crystalline structure outside the living cell. Once they infect a cell they take over the machinery of the host cell to replicate themselves, killing the host. Viruses are obligate parasites. A virus is a small infectious agent that replicates only inside the living cells of other organisms. Viruses can infect all types of life forms, from animals and plants to microorganisms including bacteria and archaea. Thus, option A is correct. Mycoplasma, bacteria and Lichens are cellular organisms and not characterised by having an inert crystalline structure outside the living cell. Thus, the correct answer is option A.
Viruses are non-cellular organisms that are characterised by having an inert crystalline structure outside the living cell. Once they infect a cell they take over the machinery of the host cell to replicate themselves, killing the host. Viruses are obligate parasites. A virus is a small infectious agent that replicates only inside the living cells of other organisms. Viruses can infect all types of life forms, from animals and plants to microorganisms including bacteria and archaea. Thus, option A is correct. Mycoplasma, bacteria and Lichens are cellular organisms and not characterised by having an inert crystalline structure outside the living cell. Thus, the correct answer is option A.
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