Module 2 (Virus)

Question 1

Viruses can be considered alive when they?

Answer 1

Enter a host

Question 2

Viruses are _ because they require livong host cells in order to multiply

Answer 2

Obligatory intracellular parasites

Question 3

Viruses lack _ for protein synthesis and atp generation

Answer 3

Enzyme

Question 4

To multiply, viruses must take over the _ of the host cell

Answer 4

Metabolical machinery

Question 5

Most virsues are able to infect only _ host speciaes

Answer 5

1

Question 6

What do you call the Spectrum of host cells that the virus can infect which includes: invertebrates, vertebrates, plants, protists, fungi, bacteria

Answer 6

Host range

Question 7

The size of the virus ranges from _ in length?

Answer 7

20 to 40 000 nm

Question 8

A viral structure of virus that is complete, fully developed, infectious virsl particle composed if nucleic acid and surrounded by protein coat is called?

Answer 8

Virion

Question 9

Virus have _ where it can have either a dna or rna but not both

Answer 9

Nucleic acid

Question 10

What do you call the protein coat surrounding the nucleic acid of the virus?

Answer 10

Capsid

Question 11

Each capsid is composed of protein subunit called?

Answer 11

Capsomeres

Question 12

The envelope of virus is usually consist of protein of some combination of _, _, and _ covering the capsid

Answer 12

Lipids, carbohydrates, proteins

Question 13

This type of virus resembles long rod that may be rigid or flexible. Nucleic acid is found within a hollow, cyndrical, capsid. This type is?

Answer 13

Helical virus

Question 14

Example of helical virus includes?

Answer 14

Ebola, rabies, and hemorrhagic fever

Question 15

This type is many sided and the capsid is in the shape if an icosahedron, regular polyhedron with 20 triangular faces and 13 corners. The capsomeres face form equilateral triangle. This type is called?

Answer 15

Polyhedral virus

Question 16

Polyhedral virus includes?

Answer 16

Polio virus, adenovirus

Question 17

This tpye of virus is the capsid covered by an envelope. It is roughly spherical and it can be enveloped helical or polyhedral. This type is?

Answer 17

Enveloped virus

Question 18

Example of enveloped helicak virus includes?

Answer 18

Influenza virus

Question 19

Example of enveloped polyhedral virus includes?

Answer 19

Herpes simplex virus

Question 20

This type of virus have complicated structure

Answer 20

Complex virus

Question 21

Example of complex virus includes?

Answer 21

Bacteriophages, poxvirus

Question 22

Virus are group based on their?

Answer 22

Nucleic acid type
Strategy for replication
Morphology

Question 23

This method of growing in virus uses a sample of bacteriophage mixed with host bacteria and melted agar. This is called?

Answer 23

Plaque method

Question 24

Growing animal viruses in the laboratory includes?

Answer 24

Living animals
Embryonated eggs
Cell culture

Question 25

What do you call the virus infecting a monolayer that causes the cells to deteriorate as they multiply?

Answer 25

Cytopathic effect

Question 26

Multiplication of bacteriophages is called?

Answer 26

Lytic cycle

Question 27

Lytic cycle is composed of what steps?

Answer 27

Attachment Penetration Biosynthesis Maturation Release

Question 28

What do you call the viral multiplication cycle where the page attaches to the host cell and injects dna?

Answer 28

Lysogenic cycle

Question 29

Multiplication if animal viruses is composed of 3 stages which includes?

Answer 29

Attachment Penetration (endocytosis happens) nutrients are brought into the cell Uncoating

Question 30

The small, circular rna molecules without a protein coat is called?

Answer 30

Viriods

Question 31

The infectious protein. These are normal body proteins that get converted to an alternate configuration. Has no dna or rna? Ex are mad cow disease. This is called?

Answer 31

Prions