Chapter 8

Question 1

Bacteriophage

Answer 1

Bacteria specific virus

Question 2

Virus

Answer 2

Intercellular, metabolism and reproduction only occurs within a host cell, each virus has specific host, they are ubiquitous

Question 3

Lytic cycle

Answer 3

Steps: attachment, injection of genetic material, replication of genetic material, assembly of viral proteins, lysis. Ex: flu, Ebola

Question 4

Lysogenic cycle

Answer 4

Steps: attachment, injection of genetic material, INTEGRATION OF GENETIC MATERIAL, replication of genetic material, assembly of viral protein, lysis. Ex: herpes, HIV

Question 5

Plaques

Answer 5

When phage infects and lysis cells the holes on the lawn are known as plaques

Question 6

Lawn

Answer 6

Host organism forms a lawn

Question 7

Too numerous to count

Answer 7

TNTC where plaques are over 300

Question 8

Too few to count

Answer 8

When plaques are lower than 30

Question 9

PFU

Answer 9

Plaque forming unit