Viruses

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

• tail
• nucleus
• capsid
• glycoprotein

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

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

Tags

NGSS.MS-LS3-1

What do viruses need to reproduce?

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

What part of the virus is number 1?

• Capsid
• DNA
• Surface Markers
• Envelope

Retroviruses replicate through

• Polymerase

• Reverse transcriptase

• Amylase

• Protease

Viruses are made of

• Nucleic Acids and DNA
• Nucleic Acids and Proteins
• Proteins and Bacteriophages
• Proteins and Capsids

Which viruses have single stranded RNA that acts as a template for DNA synthesis?

• viroids

• bacteriophages

• retroviruses

• proviruses

What is the function or reverse transcriptase in retroviruses?

• it uses viral RNA as a template for DNA synthesis

• it translates viral RNA into proteins

• it converts host cell RNA into viral DNA

• it uses viral RNA as a template for making complimentary RNA strands

What does it mean that viruses are "obligate intracellular parasites"?

• They can replicate only inside a host cell
• They can be passed from cell to cell
• They destroy cells
• They cannot affect parasitic organisms