Structure Of Viruses

Question 1

What organelles do Human Immunodeficiency viruses contain?

Answer 1

Viral RNA
Reverse Transcriptase
Attachment protein
Lipid envelope
Protein capsid

Question 2

Attachment proteins

Answer 2

Allows the virus to identify and attach to a host cell

Question 3

Viral RNA

Answer 3

• Viruses contain nucleic acid RNA as genetic material
• but can only multiply inside living host cells

Question 4

Key points of viruses

Answer 4

• acellular
• non-living particles
• smaller than bacteria ranging from 20 - 300nm
• contain nucleic acid as either DNA or RNA
• can only replicate inside a protein coat called a capsid
• some viruses have a lipid envelope
• some viruses have attachment proteins on their envelope

Question 5

Protein Capsid

Answer 5

Nucleic acid is enclosed inside a protein coat called a capsid

Question 6

Reverse Transcriptase

Answer 6

Enzyme