cancer stuff

Question 1

cancer

Answer 1

disease of cell cycle resulting from uncontrolled cell division causing tumours to form

Question 2

tumour

Answer 2

mass of cells continue to grow and divide without obvi function

Question 3

benign tumour

Answer 3

dont effect surrounding tissue, not cancer

Question 4

malignant tumour

Answer 4

interferes w function of surrounding tissue, cancerous

Question 5

metastasis

Answer 5

cancer cells breaking away from orig (primary) tumour, starts new (secondary) tumour somewhere else

Question 6

what happens in normal

cell divis

Answer 6

• dna checked so it replicates correctly and no mutations
• chem signals telling cell when to stop dividing
• neighbouring cells communicate w dividing cells to regulate growth

Question 7

what happens in cancer cell divis

Answer 7

-dna mutations (smoking etc)
-cancer cells ignore chem signals
-cannot communicate w neighbouring cells, continue growth
-

Question 8

causes of mutation

Answer 8

• carcinogens (environment)
• random errors in dna
• heredity (family)

Question 9

what is cancer screening

Answer 9

checking for cancer even if no symptoms

Question 10

what to do to reduce risk of cancer

Answer 10

• be informed about risk factors

- lifestyle choices (no smoking, healthy)

Question 11

how do u diagnose cancer

Answer 11

• image tech

- examine cells (if cells r sus theyre examined to confirm)

Question 12

what r treatments for cancer

Answer 12

-surgery to remove cancer tissue
-chemotherapy (drugs to stop division)
this and below also affect normal cells
-radiation (radiation to cancer site to damage dna in dividing cells)
-cord blood/bone marrow stem cells (leukemia)