Asked by Michelle Stobaugh on Jul 23, 2024
Verified
In order to infect a cell, a virus must
A) inject its protein into the cell while the nucleic acid remains attached to the host cell surface.
B) have a special protein spike on its surface capsid that can interact with a receptor protein on the surface of the host cell.
C) actively burrow through the cell wall or cell membrane of the host cell to reach the cell's nucleus.
D) produce a special extension of its cytoplasm when it comes into contact with the appropriate host cell.
E) have enzymes to break down the cell wall or cell membrane of the host cell.
Protein Spike
A protrusion on the surface of some viruses, such as the coronavirus, which facilitates attachment and entry into host cells.
Receptor Protein
Protein located in the plasma membrane or within the cell; binds to a substance that alters some metabolic aspect of the cell.
- Understand the composition, propagation techniques, and absence of cellular structure in viruses.
Verified Answer
RJ
Raquel J OrnelasJul 23, 2024
Final Answer :
B
Explanation :
The virus must have a specific protein spike on its surface capsid that can interact with a receptor protein on the surface of the host cell in order to infect the cell. This allows the entry of the virus into the host cell and initiate its replication.
Learning Objectives
- Understand the composition, propagation techniques, and absence of cellular structure in viruses.