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प्रश्न
Cancer is one of the most dreaded diseases. Explain 'Contact inhibition' and 'Metastasis' with respect to the disease
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उत्तर
Normal cells have the property of contact inhibition (stoppage of growth on coming in contact with other cells) but cancer cells lose this property.
As a result, cancer cells divide continuously to give rise to a mass of cells (tumours).
Metastasis- This property is exhibited by malignant tumours. It is the pathological process of spreading cancerous cells to the different parts of the body. These cells divide uncontrollably, forming a mass of cells called tumour. From the tumour, some cells get sloughed off and enter the blood stream. From the blood stream, these cells reach distant parts of the body and therefore, initiate the formation of new tumours by dividing actively.
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संबंधित प्रश्न
Explain what is meant by metastasis.
Carcinoma is cancer of ______ cells.
Explain any four therapies used in treatment of cancer.
What is metastasis?
Cancer causing genes are called ______.
Genes involved in cancer are ______.
Immunotherapy these days is one of the most efficient ways of treatment of cancer. The therapy involved activates the immune system and destroys the tumour.
- Write an example of one such biological response modifier used in immunotherapy.
- Why do patients need such substances if immune system is already working in body?
- State what is 'Contact inhibition'.
What is a malignant tumour?
During metastasis, where do cancer cells travel to form secondary tumours?
Which type of cancer would arise from bone tissue?
