Chapter 20 Flashcards
Virus
Nonliving particle made of proteins, nucleic acids, and sometimes, lipids.
What surrounds all viruses and what is it made of
Capsid, protein
What does a virus have that are the instructions for making copies of the virus
RNA or DNA
Viruses Come in many
shapes, sizes and structures.
What is outside a virus that acts as identifiers
proteins
What do specific proteins on the outside of a virus do? why do they do this
Specific proteins on the capsid of the membraneact as identifiers, recognize, and bind to specific receptors on the cell’s surface. They do this to infect the host’s cells.
Most viruses infect a BLANK cell.
Specific type of
What are viruses that only infect bacteria called?
Bacteriophages
Why are viruses not living
They can’t reproduce on their own
What are the two types of infections?
Lytic and Lysogenic
What does it mean to lyse the cell
burst open
Which of the two viruses automatically begin chopping up the host’s DNA
lytic
Which infection never leaves your body, why?
Lysogenic it places it’s DNA into the host DNA
What is a prophage
Viral DNA in host DNA
What are the two ways that viruses cause disease
Destroying the cell and upsetting homeostatis
