Cancer

One difference between a cancer cell and a normal cell is that

• Cancer cells divide uncontrollably
• Normal cells divide uncontrollably
  
• Cancer cells cannot make copies of DNA
• Normal cells cannot make copies of DNA

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NGSS.HS-LS1-4

What does cancer lead to?

• Tumor
• virus
• bacteria

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NGSS.HS-LS3-2

What causes cancer?

• Mutations in DNA
• eating healthy
• Exercise 

Which of the following is an example of internal regulation during the cell cycle?

• A gap outside of the cell (caused by a skateboarding accident) triggers cell division.
• A cell receives a signal from the cell’s own nucleus to divide.
• Tumor cells continue to divide without receiving a signal.
• Hormones in the blood cause cell growth in a growing teenager.

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NGSS.HS-LS1-4

Why is apoptosis required?

• Glycolysis

• Cell division: Meiosis and mitosis

• Growth and elimination of threats such as viruses and DNA damage

In order to enter the cell cycle a cell must be stimulated from outside. What type of molecule provides this stimulation?

• Cyclins

• Cyclin-dependent kinases

• growth factors

• Polymerases

Programmed cell death is called

• apoptosis
• cytokinesis
• interphase
• cancer