Human Health and Disease

Select best correct options to fill up the blanks.
(I) With repeated use of drugs, the tolerance level of receptors present in the body can ________
(II) Smoking produces ________ and reduces the concentration of ________ in blood.
(III) Cannabinoid receptors are present in the ________
(IV) Morphine is a very effective ________
(V) Opioids are extracted from the ________

Assertion : Tissue matching, blood group matching are essential before undertaking any graft/transplant and even after this the patient has to take immuno-suppressant all his/her life.
Reason : The body is able to differentiate ‘self and non-self and the cell mediated immune response is responsible for the graft rejection.

Select the correct matching in given column

Read the following statements and find out the option contains all the incorrect statements :-

(a) alpha-interferon are the biological response modifiers which activates the immune system of the patients and helps in destroying the tumor.

(b) Normal cells show a property called contact inhibition by virtue of which contact with other cells inhibits their uncontrolled growth.

(c) Ionising radiations like X-rays and gamma rays and non-ionising radiations like UV cause DNA damage leading to neoplastic transformation.

(d) Malignant tumors normally remain confined to their original location.

(e) Metastasis is the most feared property of malignant tumors.

Statement-I : Injecting the microbes deliberately during immunisation induces passive immunity.
Statement-II : Directly injecting the preformed antibodies for quick response as in tetnus is type of active immunity.

Given below are pairs of pathogen, diseases and type of causatic agents category. Choose the option with correctly matched.

Find out the incorrect Statement :

(i) __A__ are obtained from the inflorescences of the hemp plant.

(ii) __B__ is a white, odourless, bitter crystalline compound.

Choose the option that correctly fills the blanks A and B respectively.

Read the following statements carefully.
(i) Cancer causing viruses have genes called viral oncogenes.
(ii) Malignant tumors remain confined to their original location.
(iii) Cancer cells do not exhibit contact inhibition.
(iv) X-rays and infrared rays are potent carcinogenic.
(v) Cancer detections based on biopsy.
Which of the above statements are correct regarding cancer?