HIV and Viruses

Question 1

What is HIV?

Answer 1

Human Immunodeficiency Virus

Question 2

What does HIV do?

Answer 2

Infects helper T-cells weakening immune system which leads to the development of AIDS

Question 3

What is AIDS?

Answer 3

Acquired Immune Deficiency Syndrome

Question 4

How can people die from HIV?

Answer 4

HIV doesn’t directly kill you, your immune system becomes so weak it cannot fight any pathogens and you usually die from pneumonia/TB

Question 5

How does HIV replicate?

Answer 5

• Virus attachment protein binds to a receptor on the TH-cell
• Reverse transcriptase makes double stranded DNA from the viruses RNA
• DNA enters the nucleus through the nuclear pore
• TH-cell makes more copies of the viruses RNA and reverse transcriptase
• Capsid reforms
• Virus (RNA and reverse transcriptase) leaves host cell and takes an envelope from hosts membrane