Biology Ch. 14

The inner core of the virus

A. nucleic acid
B. capsid
C. envelolpe

Protein coat around the core of nucleic acid

A. nucleic acid
B. capsid
C. envelolpe

An additional protective coating found in some viruses

A. nucleic acid
B. capsid
C. envelolpe

Viruses have a nucleus, cytoplasm, or cell structures

True or false
True False

Viruses are tiny in size.

True or false
True False

When a virus invades a living cell, multiplies, and causes cell death

A. lytic cycle
B. lysogenic cycle

Steps of Lytic cycle

A. Entry, Attachment, Replication, Release, Assembly
B. Attachment, Entry, Replication, Assembly, Release

When host cell breaks apart and the new viruses are released

A. entry
B. release
C. assembly

When viral DNA takes over the cell and forces the cell to make viral DNA

A. attachment
B. entry
C. replication

Cycle that does not immediately kill the host

A. lytic cycle
B. lysogenic cycle

One hypothesis is that viruses evolved from their

A. host cells
B. daughter cells
C. WalMart cells

Cold sores are an example of

A. lytic cycle
B. lysogenic cycle

Has a polyhedral capsid and a helical tail

A. filovirus
B. binal virus
C. helical virus

Virus with no distinct or uniform shape

A. filovirus
B. binal virus
C. helical virus

Virus with a multifaceted appearance (many-sided)

A. polyhedral virus
B. binal virus
C. helical virus

Virus with a nucleic acid coiled inside a long narrow capsid

A. filovirus
B. binal virus
C. helical virus

Viruses that infect only bacterial cells

A. filovirus
B. host
C. bacteriophages

Tobacco-Mosaic virus is an example of

A. filovirus
B. binal virus
C. helical virus

Ebola is an example of

A. filovirus
B. binal virus
C. helical virus

Common cold virus

A. polyhedral virus
B. binal virus
C. helical virus

Viruses attacking only a few types of cells is referred to as specificity.

True or False
True False

Virus with RNA core

A. viroid
B. retrovirus
C. prion

Causes plant diseases

A. viroid
B. retrovirus
C. prion

Causes disease in animals

A. viroid
B. retrovirus
C. prion

There is a cure for viroids and prions.

True or False
True False

Contains a harmless (weakened or dead) form of a virus

A. vaccine
B. viroid
C. prion

Stimulates the immune system to produce antibodies to fight off the virus

A. vaccine
B. viroid
C. prion

Three human uses of viruses--------