SSC MTS EXAM

SSC

BIOLOGY

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Emission of light in aquatic animals
A
Bioluminescence
B
Hot light
C
Thermal radiation
D
Cold receptors
Explanation: 

Detailed explanation-1: -Bioluminescent creatures are found throughout marine habitats, from the ocean surface to the deep seafloor. The light emitted by a bioluminescent organism is produced by energy released from chemical reactions occurring inside (or ejected by) the organism.

Detailed explanation-2: -Bioluminescent dinoflagellates produce light using a luciferin-luciferase reaction. The luciferase found in dinoflagellates is related to the green chemical chlorophyll found in plants.

Detailed explanation-3: -Bioluminescence is a form of chemiluminescence, which is the production of visible light by a chemical reaction. When this kind of reaction occurs in living organisms, the process is called bioluminescence. It is familiar to most of us as the process that causes fireflies to glow.

Detailed explanation-4: -Many deep-sea creatures are bioluminescent. The light is produced by symbiotic bacteria within light-emitting cells called photophores. It’s produced by a chemical reaction when a substance called a luciferin is oxidized. When the light is released, the luciferin becomes inactive until it is replaced by the animal.

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