Multiple Choice Questions

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Kuhne:

  • discovered parathyroid

  • coined the term enzyme

  • coined the term gene

  • discovered enzyme


B.

coined the term enzyme

The term enzyme was given by W. Kuhne in 1678. J.B. Sumner (1926) purified and crystallised urease enzyme and suggested that enzymes are proteins. J.H. Northrop and M. Kunitz (1930) prepared pure crystalline pepsin and trypsin and showed that these enzymes were also proteins.


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The parasphenoid bone in frog forms :

  • base of cranium

  • floor of cranium

  • dorsal side of cranium

  • dorsolateral side of cranium


Body cavity of adult Ascaris is :

  • haemocoel

  • amphicoel

  • pseudocoel

  • schizocoel


Which of the following symmetry is found in adult sea-anemone ?

  • Radial

  • Biradial

  • Bilateral

  • Spherical


Glomerular filtrate is

  • blood minus blood corpuscles and plasma protein

  • blood minus corpuscles

  • mixture of water, ammonia and corpuscles

  • urine


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Mammalian prolactin is secreted by :

  • adenohypophysis

  • neurohypophysis

  • adrenal cortex

  • adrenal medulla


Thyroid deficiency in infant leads to :

  • hypothyroidism

  • myxoedema

  • cretinism

  • thyrotoxicosis


A condition in which body's internal environment remains relatively constant within limits is called :

  • homeostasis

  • hemostasis

  • hematoma

  • haemopoiesis


Which of the following structure in Pheretima posthuma plays the role of the liver of vertebrates ?

  • Calciferous glands

  • Gland cells

  • Chloragogen cells

  • Cliteller cells


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Which of the following is not found in Hydra ?

  • Epithelio-muscular cells

  • Cnidocyte

  • Choanocyte

  • Nerve cells