Chapter 10B, Viruses

Question 1

Who discovered TMV

Answer 1

Dmitri Iwanowski

Question 2

Who isolated the TMV virus

Answer 2

Wendell Stanley

Question 3

A virus consists of two things _____ and _____

Answer 3

A capsid and a core of DNA or RNA

Question 4

What is a virus that only infects certain bacteria

Answer 4

A bacteriophage

Question 5

Explain the five steps of the lyric cycle (AERAR)

Answer 5

Attachment
Entry
Replication
Assembly
Release

Question 6

What is lysis

Answer 6

The destruction of the host cell

Question 7

A retrovirus is special why

Answer 7

Because it has a reverse transcriptase

Question 8

A single strand of circular RNA that causes disease is called a _____

Answer 8

Viroid

Question 9

Small viroids with no nucleus acid are called _____

Answer 9

Prions

Question 10

Who invented the smallpox vaccine

Answer 10

Dr Edward Jenner

Question 11

An _____ vaccine is made from a live virus

Answer 11

Attenuated

Question 12

What chemical is a protein that is produced by infected cells

Answer 12

Interferons

Question 13

Any agent that causes a disease is called a _____

Answer 13

Pathogen

Question 14

Pathogens can cause disease by _____ and/or _____

Answer 14

Tissue destruction and/or toxin formation

Question 15

Diseases can be spread 7 ways

Answer 15

Airborne
Direct and indirect contact
Contamination
Wounds
Vector carried
Immune carried