The photic zone of the ocean is also known as the sunlight layer. It is the region in which phyto- plankton live and can undergo photosynthesis. The depth of the photic zone varies depending on how murky the water is — “murkiness” is caused by, for example, tiny particles of sediment that absorb light. The aphotic zone is defined as being the depth beyond which more than 99% of the light from the surface has already been absorbed. (c) (Advanced) The bioluminescence photon emission curve plotted at the start of this question is foran idealised experiment carried out in a laboratory. The measurement is performed using a lightdetector in a dark fish tank filled with clear water. Would you expect the observed R(t) to changeif the measurement was instead performed in situ in the ocean during the daytime (i) in the photiczone in clear water, and (ii) in the aphotic zone in murky water? Explain your answers. Bioluminesence is the production and emission of light by living organisms from chemical reactioutilising luciferin and luciferase. Many deep sea creatures exhibit bioluminescence for a varietyreasons, including mating, feeding, and camouflage. A model for a flash of bioluminescence, givinthe rate of photons (light particles) being emitted per second isR(t) = At² exp(-Bt),where A and B are constants, and t is time in seconds. The derivative of this function isR' (t) = 2At exp(-Bt) – BAt² exp(-Bt).

For experimental precision and repeatability in bioluminescence imaging (BLI), it is crucial to…

The photic zone of the ocean is also known as the sunlight layer. It is the region in which phyto- plankton live and can undergo photosynthesis. The depth of the photic zone varies depending on how murky the water is — “murkiness” is caused by, for example, tiny particles of sediment that absorb light. The aphotic zone is defined as being the depth beyond which more than 99% of the light from the surface has already been absorbed.

The photic zone of the ocean is also known as the sunlight layer. It is the region in which phyto- plankton live and can undergo photosynthesis. The depth of the photic zone varies depending on how murky the water is — “murkiness” is caused by, for example, tiny particles of sediment that absorb light. The aphotic zone is defined as being the depth beyond which more than 99% of the light from the surface has already been absorbed.

Materials Science And Engineering Properties

1st Edition

ISBN:9781111988609

Author:Charles Gilmore

Publisher:Charles Gilmore

Chapter15: Experimental Methods

Section: Chapter Questions

Problem 2ETSQ

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