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Question

The property of living organism to emit light by bioluminescence is exhibited by

A

Ctenoplane

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B

Pennatula

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C

Meandrina

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D

Physalia

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Solution

The correct option is A

Ctenoplane


  • Bioluminescence is the property of a living organism to emit light.
  • It is a type of chemiluminescence.
  • The chemical reaction in such organisms involves some light-emitting molecule called luciferin and an enzyme called luciferase.
  • Bioluminescence is mostly seen in a marine vertebrate and invertebrate animal, few fungi, bioluminescent bacteria and terrestrial invertebrates (fireflies).
  • Ctenoplana is a genus of comb jellies which are transparent or colourless organisms belonging to the phylum Ctenophora.
  • They exhibit the property of bioluminescence.
  • It is caused by the activation of calcium-activated proteins named photoproteins in cells called photocytes in these organisms.
  • So, the correct answer is 'Ctenoplana'.

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