Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

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11.

Deoxyribonuclease and ribonuclease are secreted by

  • liver

  • stomach

  • pancrease

  • kidney


C.

pancrease

Deoxyribonuclease and ribonuclease are secreted by pancreas. These enzymes act on DNA and RNA and convert them to deoxyribonucleotides and ribonucleotides, respectively. The optimum pH required by pancreatic juice to secrete these enzymes is 7-8 (alkaline).


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12.

Haemodialysis helps in patient having

  • uremia

  • anaemia

  • diabetes

  • goitre


13.

X- rays are used in 

  • ECG

  • EEG

  • CT- scan

  • Endoscopy


14.

The thin filaments of a muscle fibre are made up of

  • actin, troponin, tropomyosin

  • actin, troponin

  • myosin, troponin

  • actin, tropomyosin


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15.

In which part of mitochondria does ATP synthesis occur?

  • F1

  • F0

  • Cristae

  • Inner membrane of mitochondria


16.

Fat, prior to its oxidation associate with

  • cyclic AMP

  • Co- A

  • GMP

  • ATP


17.

Schwann cell is found around

  • axon

  • cyton

  • dendrite

  • dendron


18.

Which part of retina consists of only cones?

  • Fovea centralis

  • optic nerve

  • Blind spot

  • Orasmata


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19.

Heparin is secreted by

  • mast cell

  • alveolar cell

  • plasma cell

  • goblet cell


20.

Reflex action involves

  • spinal cord

  • cerbellum

  • medulla oblongata

  • optic lobe


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