Virus Reading Guide How Active Viruses Multiply Virus

Virus Reading Guide

How Active Viruses Multiply Virus attaches to the surface of a living cell

How Active Viruses Multiply Virus injects genetic material into cell

How Active Viruses Multiply Cell produces viral proteins and genetic material

How Active Viruses Multiply Viruses assemble

How Active Viruses Multiply Cell bursts, releasing viruses

How Hidden Viruses Multiply Virus attaches to the surface of a living cell

How Hidden Viruses Multiply Virus’s genetic material becomes part of the cell’s genetic material.

How Hidden Viruses Multiply Later, virus’s genetic material becomes active.

How Hidden Viruses Multiply Cell produces viral proteins and genetic material; viruses are assembled

How Hidden Viruses Multiply Cell bursts, releasing viruses

1. Why do biologists consider viruses to be nonliving?

1. Why do biologists consider viruses to be nonliving? Viruses are not cells and do not have the characteristics of organisms.

2. True/ False. Viruses multiply the same way as other organisms.

2. True/ False. Viruses multiply the same way as other organisms. False

3. Which is the name of a living that provides energy for a virus or an organism? A. Parasite B. Host C. Bacteriophage D. Particle

3. Which is the name of a living that provides energy for a virus or an organism? B. Host

4. Viruses act like ____ because they destroy the cells in which they multiply.

4. Viruses act like ____ because they destroy the cells in which they multiply. parasites

5. True/ False. Each virus can enter only a few types of cells in a few species.

5. True/ False. Each virus can enter only a few types of cells in a few species. True

6. True/ False. All viruses have the same shape.

6. True/ False. All viruses have the same shape. False

7. A virus that infects bacteria is called a(n) _______.

7. A virus that infects bacteria is called a(n) _______. bacteriophage

8. True/ False. Viruses are much smaller than bacteria.

8. True/ False. Viruses are much smaller than bacteria. True

9. Circle the letter of each sentence that is true about viruses. They are larger than cells. b. They need to be inside a living cell in order to reproduce. c. They contain genetic material. a.

9. Circle the letter of each sentence that is true about viruses. b. They need to be inside a living cell in order to reproduce. c. They contain genetic material.

10. Label the two basic parts of a virus in this diagram.

10. Label the two basic parts of a virus in this diagram. Protein Coat

10. Label the two basic parts of a virus in this diagram. Genetic material Protein Coat

11. True/ False. Some viruses are surrounded by an outer membrane envelope.

11. True/ False. Some viruses are surrounded by an outer membrane envelope. True

12. What are two functions of a virus’s protein coat?

12. What are two functions of a virus’s protein coat? 1. It protects the virus. 2. It allows the virus to attach to certain cells.

13. True/ False. The shape of the proteins allow the virus’s coat to attach to only certain cells in the host.

13. True/ False. The shape of the proteins allow the virus’s coat to attach to only certain cells in the host. True