Cancer

Which one of the following statements is correct?

1.	Patients, who have undergone surgery are given cannabinoids to relieve pain
2.	Benign tumours show the property of metastasis
3.	Heroin accelerates body functions
4.	Malignant tumours may exhibit metastasis

Which one of the following is not a property of cancerous cells, whereas the remaining three are?

1.	They compete with normal cells for vital nutrients
2.	They do not remain confined in the area of formation
3.	They divide in an uncontrolled manner
4.	They show contact inhibition

Neoplastic characteristics of cells refer to:

A.	A mass of proliferating cell
B.	Rapid growth of cells
C.	Invasion and damage to the surrounding tissue
D.	Those confined to original location

Choose the correct answer from the options given below.

1.	A, B, D only	2.	B, C, D only
3.	A, B only	4.	A, B, C only

Which are correct:

A.	Computed tomography and magnetic resonance imaging detect cancers of internal organs.
B.	Chemotherapeutic drugs are used to kill non-cancerous cells.
C.	Interferon activates the cancer patients' immune system and helps in destroying the tumor.
D.	Chemotherapeutic drugs are biological response modifiers.
E.	In the case of leukemia, blood cell counts decrease.

Choose the correct answer from the options given below:

1.	C and D only	2.	A and C only
3.	B and D only	4.	D and E only