Viruses

What do viruses need to reproduce?

• they need genetic material
• They need a host cell
• They need  bacteria
• They need insulin

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

• endospore
• decomposer
• plasmid
• bacteriophage

When a virus invades a living cell, its _______
takes over the cell's functions.

• outer coat
• genetic material
• core
• cytoplasm

Tags

NGSS.MS-LS1-2

What part of the phage is the DNA?

• A
• B
• C
• D

What part of a virus is the protein capsule that houses the genetic material (DNA/RNA)?

• tail
• nucleus
• capsid
• glycoprotein

What do viruses have in common with living cells? They both...

• store genetic information
• have chloroplasts
• use glucose for cellular respiration
• have endoplasmic reticulum

How do viruses reproduce?

• They copy their own genetic material inside a protein coat.
• They kill a cell and reproduce inside it
• They invade a living cell and use the cell's functions to replicate their genetic material
• They do not reproduce because they are not technically living things

What provides direct energy for the virus?

• food
• its host
• the sun
• a parasite

What are the two parts of a virus?

• Nucleic acid and a protein coat (capsid)

• Nucleic acid and a Nucleus

• Cell membrane and mitochondria

• Chloroplast and a cell wall

The first step of a virus infection is....

• The virus injects its DNA into the host cell
• The virus attaches to a host cell
• The viral DNA takes over the host cell and builds new viruses
• The host cell bursts and dies, spreading new viruses