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The envelope.

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Curt Eichmann

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3y ago

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What additional protective layer surrounds some viruses?

envelope


What additiional protective layer of protein surrounds some viruses?

Some viruses have an additional protective layer of protein called a capsid, which encloses their genetic material. The capsid helps protect the virus from environmental conditions and aids in attaching to host cells for infection.


Cell membrane and protein coat same thing?

No, the cell membrane and protein coat are not the same thing. The cell membrane is a phospholipid bilayer that surrounds the cell, providing structure and regulating what goes in and out. A protein coat, on the other hand, is a protective layer made of proteins that surrounds some viruses.


What is a thick protective coat that surrounds the DNA and protein?

The thick protective coat that surrounds DNA and protein is typically referred to as a nuclear envelope or nuclear membrane in eukaryotic cells. This double lipid bilayer structure separates the contents of the nucleus from the cytoplasm, providing a barrier that protects genetic material. Additionally, in some contexts, particularly in viruses, a protein coat called a capsid may surround the DNA or RNA, serving a similar protective function.


Are viruses made of protein and lipid membranes?

A virus particle is composed of a nucleic acid that is surrounded by the capsid (which is the protective layer that is made out of protein). Some viruses can have lipid envelope however, not all viruses have a lipid envelope.


Does a virus have a protein coat?

Yes. All viruses are composed of a nucleic acid surrounded by a protein capsid. When the capsid is not present, the the infectious nucleic acid is called viroid. When the nucleic acid is not present, the infectious protein coating is called prion.


What structures are found in all viruses?

All viruses contain genetic material (DNA or RNA) and a protein coat (capsid) that surrounds and protects the genetic material. Some viruses also have an outer lipid envelope that is derived from the host cell membrane.


What are the two basic components of viruses?

The two basic components of viruses are genetic material (either DNA or RNA) and a protein coat that surrounds and protects the genetic material.


Does a virus have cell membranes?

Enveloped viruses do have a membrane that they got from their host. All other viruses do not.


Do viruses feature a capsid?

Yes, viruses typically have a capsid, which is a protein coat that surrounds and protects their genetic material. The capsid plays a crucial role in facilitating the virus' entry into host cells and in protecting the viral genome from degradation.


What basic structure do viruses share?

Unlike prions and viroids, viruses consist of two or three parts: all viruses have genes made from either DNA or RNA, long molecules that carry genetic information; all have a protein coat that protects these genes; and some have an envelope of fat that surrounds them when they are outside a cell. Viroids do not have a protein coat and prions contain no RNA or DNA. In short, just say that all viruses have a protein coat and either DNA or RNA.


Do viruses have cyoplasm?

Viruses do not have a cytoplasm. A virus particle is known as a virion. It consists of nucleic acid (DNA or RNA) surrounded by a protective coat made of protein known as a capsid. Some viruses are surrounded by an envelope which comes from the host cell membrane.