Biology, asked by Navjot6082, 1 year ago

How do viruses and toxins enter the cell?

Answers

Answered by vikram122
1
Viruses enter the cell, which is covered by a phospholipid bilayer and acts as a cells natural barrier to its surrounding. The process by which this barrier is crossed depends upon the type of virus. There are 4 types of viral entry into the cell:

1.Attachment or Viral Adsorption : The viral receptors attached to the complementary receptors on the cell membrane.

2.Membrane Fusion : The cell membrane is punctured and later attached with the unfolding viral envelope.

3.Entry via Pore formation: An opening is established for the entry of viral particles.

4.Viral Penetration : The viral capsid or genome is injected into the host cells cytoplasm directly.

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