Virus Test Review

Virus Test Review spring 2014

Scientists:

1. Who developed the first vaccine?

1. Who identified the first virus?

1. What was the first virus identified?

General virus info:

1. What cells do HIV infect?

1. Which cycle of viral reproduction does HIV replicate in when a person infected doesn’t show any symptoms?

1. What does a virus need in order to replicate?

1. What is a retrovirus?

1. If a virus contains RNA instead of DNA what type of virus is this?

1. What is a virus that attacks only a bacterial cell?

1. List the 3 reasons viruses are not living.

Using the figure to the left-

1. What is the only organism this kind of virus can infect?
2. What structure in the drawing stores DNA?

1. What structure is used to anchor it to a host?

1. What is the shape of the structure called?

1. What is an example of this type of virus?

1. A virus that enters the cell by injecting its genetic material, makes copies of itself and then causes the cell to burst is in which cycle? Draw a picture: (know the steps!)

1. A virus injects its DNA into a cell’s DNA. In which cycle does thecell replicate the viral DNA along with its own DNA?Draw a picture: (know the steps!)

1. Here are some virus examples(look closely at this list! – you will need to be able to identify some of the illnesses)–

Circle the viruses that have a vaccine...think about the vaccines you have received)

• Adenovirus (common cold)• Ebola• Smallpox• Warts

• Hepatitis A & B•Chickenpox• SARS• West Nile

• AIDS• Influenza (Flu)• Rabies

• Avian Bird Flu• Mumps• Polio

Viral Shapes:

19. What is the name of this shape?

20. What disease can it cause?

21. What is the name of this shape?

22. What disease can it cause?

23. What is the name of this shape?

24. What disease can it cause?

25. What is the name of this shape?

26. What disease can it cause?

29. What does cell lysis mean?

1. If viruses enter the cell and affect the genes that are responsible for controlling the cell cycle, what kind of disease results?

1. All viruses have what 2 parts. List them and explain what they are.

1. If a virus can not attach to a cell, can it cause disease in that cell?

1. Can viruses perform any metabolic processes?

1. What are antibiotics effective against? Why?

1. Looking at questions 33 and 34, can antibiotics be effective in treating a virus? Why or why not?

1. What determines which kind of cell a virus can target(infect)?

1. What is a pathogen?