Examlex
Which of the following is correct?
Microscope
An optical instrument used for viewing very small objects, such as mineral samples or living cells, typically magnified several hundred times.
Membranous Envelope
A lipid bilayer that surrounds certain viruses and organelles, providing protection and assisting in processes like fusion and entry into cells.
Protein Capsid
A protein capsid is the protein shell of a virus, enclosing its genetic material. It plays a key role in the virus's ability to infect host cells.
Protein Spike
A protrusion on the surface of some viruses, such as the coronavirus, which facilitates attachment and entry into host cells.
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