Infection and Disease

Question 1

different transmission

Answer 1

contact, bodily fluids, droplets, ingestion, airborne, vectors

Question 2

what is an endospore bacteria

Answer 2

Tough multilayered structure which contains a copy of chromosome
Can survive harsh conditions (boiling or high pressure)
Can lie dormant
No metabolism

Question 3

What is a virus

Answer 3

THEY’RE NON LIVING (bc they cannot reproduce)

Question 4

whats bacteriophage?

Answer 4

virus that infects bacteria

Question 5

what are DNA and RNA genomes surrounded by?

Answer 5

a protein coat aka capsid

Question 6

how does a virus infect a bacteria?

Answer 6

1. Virus infects cell DNA or RNA and induces cells to make more virus particles
2. New virus particles leave host cells + infect others
3. Cells damaged + die

Question 7

whats a genome?

Answer 7

DNA or RNA, single linear or circular

Question 8

whats a Capsid?

Answer 8

Protein shell, shape depends on type of virus

Question 9

whats a viral envolope?

Answer 9

Some viruses, derived from host cell phospholipid + membrane proteins

Question 10

Whats a crystallized virus?

Answer 10

Viable and infections

Question 11

Lack Enzymes + ribosome

Answer 11

Can express genes + chemical synthesis inside host using its equipment + chemical pathways

Question 12

Whats host range?

Answer 12

• Limited number of host species that virus can infect

- Host must have specific lock + key between viral surface proteins + receptors outside host cells