Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

51.

Neurohypophysis secretes

  • ADH and oxytocin

  • oxytocin and estrogen

  • vasopressin and GH

  • vasopressin and estrogen


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52.

Pancreatic duct of a healthy dog is blocked. Which of the functions of pancreas will not be affected ?

  • Protein digestion

  • Carbohydrate digestion

  • Neutralization of chyme

  • Maintenance of normal blood sugar level


D.

Maintenance of normal blood sugar level

Blocked pancreatic duct does not prevent the release of insulin and glucagon to blood as it is endocrine in nature. Also, digestive enzymes are critical for food digestion, while insulin aids in the control of the metabolism and blood sugar levels. Thus, maintenance of normal blood sugar level is not affected.


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53.

Physiologically active thyroxine exists in which of the following form ?

  • Unbound

  • Bound to albumin

  • Bound to globulin

  • All of the above


54.

A flower characterised by monadelphous tubular stamens belongs to :

  • Solanaceae

  • Liliaceae

  • Malvaceae

  • Brassicaceae


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55.

In Musa, inflorescence is :

  • spadix

  • corymb

  • capitulum

  • polychasial cyme


56.

In oogamy, fertilization involves :

  • a small non- motile female gamete and a large motile male gamete

  • a large motile female gamete and a small non-motile male gamete

  • a large non- motile female gamete and a small motile male gamete

  • a large non-motile female gamete and a small non-motile male gamete


57.

In angiosperms, triple fusion results in the formation of:

  • zygotic nucleus

  • polar nucleus

  • secondary nucleus

  • primary endosperm nucleus


58.

The most accepted theory of ageing is :

  • less RBC in blood

  • thymus gland becomes non-functional

  • brain cells die with ageing

  • all of the above


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59.

Which of the following is a viral disease in silkworm ?

  • Flacherie

  • Grasserie

  • Muscardine

  • Pebrine


60.

Which of the following is not the example of marine fishes ?

  • Labeo

  • Mugil

  • Hilsa

  • Sardines


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