Characteristics of life, Viruses and Bacteria **ENGLISH**

The ability to maintain a stable internal environment is called ________________.

• Metabolism

• Mitosis

• Heterozygous

• Homeostasis

Tags

NGSS.HS-LS1-3

What is one way that a lysogenic infection differs from a lytic infection?

• A lysogenic virus does not act on bacteria as a lytic virus does.

• A lysogenic virus can remain in the host DNA for a longer period without becoming active.

• A lysogenic virus contains RNA instead of DNA.

• A lysogenic virus directs the production of new viruses right away.

What is the first step of the virus reproduction cycle?

• The viruses genetic material (DNA) starts to take over the functions of the cell

• The host cell bursts open, releasing the new viruses .

• The virus injects its genetic material into the cell

• A virus attaches to the surface of a host cell

What is the last step in the viral reproduction cycle?

• A virus attaches to the surface of a host cell

• The proteins and genetic material start to assemble in the cell

• The host cell bursts open, releasing the new viruses

• The virus injects its genetic material into the cell

Where do viruses reproduce?

• Outside of a cell

• Inside of a cell

• Viruses cannot reproduce by themselves

Reasons that viruses are considered to be nonliving is because

• They are not cellular

• They cannot reproduce on their own

• They cannot make proteins

• All the choices are correct

True or False

The flu is caused by a virus

• true

• false

What is a way to become immune to a disease without first having the disease?

• antibiotics

• Anti-viral drugs

• Vaccinations

• Exposure Therapies

A(n) _____ is a virus that enters a bacterial cell.

• endospore

• decomposer

• plasmid

• bacteriophage

Smallest living unit of a living organism

• Cells

• Reproduce

• Genetic code

• Homeostasis

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2