sentence: Plants have a rigid cell wall made of cellulose, and fungi one of chitin.
sentences_before: This is often called viral entry. The infection of plant and fungal cells is different from that of animal cells.
sentences_after: The damage done to cell walls would let the virus get in. Bacteria, like plants, have strong cell walls that a virus must breach to infect the cell.
concept_name: plant
headings: Virus Replication cycle
categories: Viruses