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प्रश्न
What is cancer?
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उत्तर
Cancer is the uncontrolled growth of abnormal cells in the body. Cancer develops when the body’s normal control mechanism stops working. Old cells do not die and instead grow out of control, forming new, abnormal cells. These extra cells may form a mass of tissue, called a tumor. Some cancers, such as leukemia, do not form tumors.
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संबंधित प्रश्न
What is a carcinogen?
Differentiate between a benign tumor and a malignant tumor.
antiviral proteins released by cells infected by the virus are called ______.
Cancer cells are more easily damaged by radiations than normal cells because they are ______.
Which type of cancer affects lymph nodes and spleen?
Cancers of connective tissues are called ______.
Stomach cancer is characterised as ______.
All of the following are cancer-causing, EXCEPT ______.
If a patient is advised Anti Retroviral Therapy, which infection is he suffering from? Name the causative organism.
In the given flow diagram, the replication of retrovirus in a host is shown. Observe and answer the following questions.
Fill in (1) and (2)
Why is the virus called retrovirus?
Can the infected cell survive while viruses are being replicated and released?
Which disease is caused by HPV?
Why is a malignant tumour considered to be more damaging than a benign tumour? Explain.
Neoplastic characteristics of cells refer to:
- A mass of proliferating cell.
- Rapid growth of cells.
- Invasion and damage to the surrounding tissue.
- Those confined to original location.
Choose the correct answer from the options given below:
What is metastasis?
What is lymphoma?
What is leukaemia?
Which type of cancer would arise from bone tissue?
