Cancer (OCR GCSE Biology A, Combined (Gateway Science Suite)): Flashcards
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14 cards from this deck
What is cancer?
What is cancer?
Uncontrolled cell growth & division forming a tumour
Benign tumour
Benign tumour
Growth confined to one place, not cancerous
Do benign tumours invade tissues?
Do benign tumours invade tissues?
No, they do not invade other tissues
When are benign tumours dangerous?
When are benign tumours dangerous?
When they press on vital organs like the brain
Malignant tumour
Malignant tumour
Cancerous tumour that invades & spreads to other tissues
Metastasis
Metastasis
Spread of cancer cells to form secondary tumours
How do cancer cells spread in the body?
How do cancer cells spread in the body?
Via bloodstream or lymphatic system
Growth rate of malignant cells
Growth rate of malignant cells
Divide more rapidly & live longer than normal cells
Cancers caused by smoking
Cancers caused by smoking
Lung, mouth, bowel, stomach, & cervical cancer
Cancers linked to obesity
Cancers linked to obesity
Bowel, liver, & kidney cancer
Cancer caused by UV exposure
Cancer caused by UV exposure
Skin cancer
Cancer caused by hepatitis B & C
Cancer caused by hepatitis B & C
Liver cancer
Cancer linked to HPV
Cancer linked to HPV
Cervical cancer
Cancers linked to BRCA1 & BRCA2 genes
Cancers linked to BRCA1 & BRCA2 genes
Breast & ovarian cancers