NEET Sample Paper NEET Sample Test Paper-50

  • question_answer 173) Read the following statements regarding the various techniques used in cancer detection
    (i) Cancer detection is based on biospy and histophathological studies of the tissue, and blood and bone marrow tests for increased cell counts in case of leukaemia
    (ii) In biopsy, a piece of the suspected tissue cut into thin sections is stained and examined   under   microscope by a pathologist
    (iii) Techniques like radiography (use of X-rays), CT (computed tomography) and MRI (magnetic resonance imaging) are very useful to detect cancers of the internal organs.
    (iv) Computed tomography uses strong magnetic fields and non-ionising radiations to detect physiological changes in living tissues.
    (v) MRI uses X-rays and ionising radiation to generate a 3-D image of the internal structure of an object.
    Which of the above statements are incorrect?

    A) (i) and (iii)                     

    B) (ii) and (iv)

    C) (iii) and (iv)                   

    D) (iv) and (v)

    Correct Answer: D

    Solution :

    Computed tomography uses X-rays to generate a three-dimensional image of the internal structure of an object. MRI uses strong magnetic fields and non-ionising radiations to accurately detect pathological and physiological changes in the living tissues.

adversite



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