NURSING EXAM QUESTIONS
MICROBIOLOGY
|
Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
|
This part of a virus attaches to the receptor proteins in the cell membrane allowing a virus to enter the host cell.
|
|
Antigens
|
|
|
Capsid
|
|
|
Spikes
|
|
|
Tail Fibers
|
Explanation:
Detailed explanation-1: -Overview. Prior to entry, a virus must attach to a host cell. Attachment is achieved when specific proteins on the viral capsid or viral envelope bind to specific proteins called receptor proteins on the cell membrane of the target cell.
Detailed explanation-2: -The first stage, attachment, involves viral proteins binding to the host cell surface. There, they interact with receptors specific to them and their host cells. The specificity of viral attachment is a key decider of the range of hosts a virus can affect. This is also known as the tropism of a virus.
There is 1 question to complete.