Chapter 19 Flashcards
1
Q
Characteristics of prokaryotes
A
Unicellular No nucleus or organelles Smaller than eukaryotes Archaea and bacteria domains Cell wall
2
Q
Pathogen
A
Organism that causes disease
3
Q
Diseases caused by bacteria
A
Tetanus Bubonic Plague Lyme disease Tuberculosis Syphilis Cholera
4
Q
All viruses have
A
Genetic material and a protein coat
5
Q
What do viruses not have compared to cells?
A
No membrane, cytoplasm, organelles, ribosomes
6
Q
Viral Replication
A
Attachment of virus to host cell Entry of genetic material into cell Synthesis of new viral proteins and genetic material copies Assembly of new viruses Release of new viruses from host cell
7
Q
Bacteriophage
A
Virus that only infects bacteria
8
Q
How antiviral drugs work
A
Target enzymes or proteins that only viruses have or need
9
Q
How vaccination works
A
Weak/dead virus teaches immune system to recognize live virus and attack before it reaches host cells
10
Q
Viroid
A
Small, infectious pieces of RNA (infects plants)
11
Q
Prion
A
Infectious protein particles
Causes: creutzfeld-jakob disease, bovine spongiform encephalopathy
12
Q
3 domains of life
A
Bacteria, Archaea, Eukarya
