These dermal chromatophore units ( DCU ) consist of an uppermost xanthophore or erythrophore layer, then an iridophore layer, and finally a basket-like melanophore layer with processes covering the iridophores.
32.
The archaeal-type rhodopsins of " Chlamydomonas " contain an all-" trans " retinylidene chromatophore which undergoes photoisomerization to a 13-" cis " isomer.
33.
Animals such as chameleon, frog, flatfish such as the peacock flounder, squid and octopus actively change their skin patterns and colours using special chromatophore cells to resemble their current background ( as well as for signalling ).
34.
A modified version of the pigmentary hormones are also produced during stress ( and when you stress fish and frogs, they change colour for this very reason, see chromatophore ) . t 23 : 13, 7 February 2007 ( UTC)
35.
In variable protective resemblance, an animal such as a chameleon, flatfish, squid or octopus changes its skin pattern and colour using special chromatophore cells to resemble whatever background it is currently resting on ( as well as for signalling ).
36.
A single diatom at first look may not seem to be a cell, but diatoms are eukaryotic organisms with common organelles such as a nucleus, mitochondria, and golgi complex . 1 ) Nucleus; holds the genetic material 2 ) Nucleolus; Location of the chromosomes 3 ) Golgi complex; modifies proteins and sends them out of the cell 4 ) Cell Wall; Outer membrane of the cell5 ) Pyrenoid; center of carbon fixation 6 ) Chromatophore; pigment carrying membrane structure 7 ) Vacuoles; vesicle of a cell that contains fluid bound by a membrane8 ) Cytoplasmic strands; hold the nucleus 9 ) Mitochondria; creates ATP ( energy ) for the cell 10 ) Valve / Striae; allows nutrients and waste in and out of the cell
37.
File : Diatom Anatomy . svg | A single diatom at first look may not seem to be a cell, but diatoms are eukaryotic organisms with common organelles such as a nucleus, mitochondria, and golgi complex . 1 ) Nucleus; holds the genetic material 2 ) Nucleolus; Location of the chromosomes 3 ) Golgi complex; modifies proteins and sends them out of the cell 4 ) Cell Wall; Outer membrane of the cell5 ) Pyrenoid; center of carbon fixation 6 ) Chromatophore; pigment carrying membrane structure 7 ) Vacuoles; vesicle of a cell that contains fluid bound by a membrane8 ) Cytoplasmic strands; hold the nucleus 9 ) Mitochondria; creates ATP ( energy ) for the cell 10 ) Valve / Striae; allows nutrients and waste in and out of the cell
