EVERYDAY SCIENCE

Detailed explanation-1: -Inside its capsid is a genome of RNA. Spike proteins called, S proteins, recognize the ACE2 receptors of host cells allowing the virus to enter the host cell. Upon entry into the host cell, the virus hijacks the host and turns it into a factory producing many, many copies of SARS-CoV-2.

Detailed explanation-2: -Viruses cannot replicate on their own, but rather depend on their host cell’s protein synthesis pathways to reproduce. This typically occurs by the virus inserting its genetic material in host cells, co-opting the proteins to create viral replicates, until the cell bursts from the high volume of new viral particles.

Detailed explanation-3: -Viruses bring their DNA and RNA instructions to the cell, and trick the cell into following them. The cells follow the virus’ directions and make all the necessary parts for the virus. Cells even use their own tools and raw martials for the virus parts. New copies of viruses can then be put together inside the cell.

Detailed explanation-4: -As viruses are obligate intracellular pathogens they cannot replicate without the machinery and metabolism of a host cell. Although the replicative life cycle of viruses differs greatly between species and category of virus, there are six basic stages that are essential for viral replication.

Detailed explanation-5: -Viruses are obligate intracellular parasites. They enter host cells, they use host cell machineries to replicate their genome and synthesize their proteins, and they produce progeny virions that are released in the extracellular environment.