cancer

• A tumor is an abnormal mass of cells that forms when a group of cells undergo uncontrolled growth and division.
• There are two main types of tumours, benign and malignant
• Which type of tumour is contained within one area, usually within a membrane?

  • benign
• Tumour cells divide by which type of cell division

  • mitosis
• Which type of tumours can invade neighbouring tissues and spread to different parts of the body in the blood:

  • malignant
• Which type of tumours are considered 'cancer'?

  • malignant
• What are two characteristics of malignant tumours?

  • They can lead to secondary tumours
  • The tumour cells can spread around the body in the blood
• What are two characteristics of benign tumours?

  • They are usually contained within a membrane
  • They don't invade neighbouring tissues