‘X’ is a microorganism that has a protein coat which is surrounded by an envelope having spikes and they remain inactive when they are outside a suitable host. Identify the microorganism ‘X’.

Amoeba

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Euglena

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Mycobacterium

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Virus

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Solution

The correct option is D Virus
Viruses contain a core DNA or RNA that is surrounded by a protein coat. This protein coat is surrounded by an envelope of proteins, lipids, and carbohydrates. These envelopes have spikes that help the virus to infect the host cells. Once the virus enters the host, they use the host cell machinery to reproduce, but otherwise remain inactive when they are outside a suitable host.

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Similar questions

With respect to the given statements, choose the correct option.
Statement 1: Viruses are inactive when they are outside the host body.
Statement 2: Viruses do not have a cellular organisation.

Q. Identify a microorganism that can produce biomass of protein.

Q. Viral envelope (which is outside the protein coat) is composed of

Viruses are dead when it is outside a host cell. They are alive only inside a host cell.

Statement 1: Viruses are dead when they are outside the host body.
Statement 2: Viruses do not have a cellular organisation.

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