XII - CH - 8 - Immunology - P - 3

The blood cancer is known as

• (a) haemolysis

• (b) haemophilia

• (c) leukaemia

• (d) thrombosis

cancerous cells continue to divide giving rise to masses of cells called tumors because of _ _ _ _ _.

• (a) loss of contact inhibition

• (b) presence of contact inhibition

• (c) Mutation

• (d) All the above

The type of tumor normally remain confined to their original location and do not spread to other parts of the body is called _ _ _ _ _ _.

• (a) malignant tumors

• (b) Brain tumor

• (c) Lung cancer

• (d) Benign tumors

Which type of tumor cells can grow very rapidly, invading and damaging the surrounding normal tissues?

• (a) Malignant tumors

• (b) Benign tumors

• (c) Brain tumors

• (d) All the above

Metastasis is

• (a) part of regeneration.

• (b) transfer of cancer cells from one part of the body to another.

• (c) fast mitosis in cancer cells

• (d) all of the above

Cancer causing viruses are called _ _ _ _ _.

• (a) carcinogens

• (b) metastasis

• (c) oncogenic viruses

• (d) malignant tumors

Technique(s) is / are very useful to detect cancers of the internal organs

• (a) use of X-rays

• (b) computed tomography

• (c) magnetic resonance imaging

• (d) All the above

The common approaches for treatment of cancer are _ _ _ _ _ _ _.

• (a) surgery

• (b) radiation therapy

• (c) immunotherapy

• (d) All the above

The large bean shaped lymphoid organ is .

• (a) Lymph node

• (b) spleen

• (c) Bone marrow

• (d) Thymus

These are the organs where origin, maturation and proliferation of lymphocytes occur is called _ _ _ _ _

• (a) Lymphoid organs

• (b) Immune Organs

• (c) antibodies

• (d) Allergic organs