Which component of a typical virus is responsible for attaching to host cell receptors?

• A. Viral genome
• B. Capsid
• C. Envelope glycoproteins
• D. Matrix protein

Answer: (C)

Verified step by step guidance

1. Understand that viruses must attach to specific receptors on the host cell surface to initiate infection.
2. Recall that the viral genome contains the genetic material but does not interact directly with host cell receptors.
3. Recognize that the capsid is the protein shell protecting the viral genome but is not primarily responsible for receptor binding.
4. Know that matrix proteins provide structural support inside the viral envelope but do not mediate attachment to host cells.
5. Identify that envelope glycoproteins, which are embedded in the viral envelope, specifically bind to host cell receptors, facilitating viral entry.