Review your knowledge of cancer by answering the questions below. Refer to your textbook if necessary.

1. What is cancer?
   
   
   
2. List and describe the two general types of tumors.
   
   2. 
      
      
3. What is metastasis?
   
   
   What are the two ways metastasis can occur?
   2. 
      
      
4. List and define four common classes of malignant tumors.
   
   4. 
      
      
5. What is a mutagen? How can gene mutation cause cancer?
   
   
   Give three examples of mutagens.
   
   3. 
      
      
6. What is a carcinogen?
   
   
   Give three examples of carcinogens.
   3. 
      
      
7. Define the following, and describe how each can contribute to the development of cancer.
   
   oncogene:
   
   
   suppressor gene:
   
   
   cancer promoter:
   
   
   
8. List two dietary compounds that may contribute to cancer.
   2. 
      
      
   List six dietary compounds that may help prevent cancer.
   
   6. 
      
      

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