Our vision can adapt to change between bright light and dark, but it takes a moment because the rhodopsin in our receptor cells must break apart into all-trans-retinal and scotopsin for light adaptation and recombine for dark adaptation.
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Rhodopsin is a pigment-containing sensory protein (photopigment) that converts light into an electrical signal. Rhodopsin consists of 11-cis retinal combined with scotopsin. When rhodopsin absorbs light, retinal changes from 11-cis to all-trans retinal and the retinal-scotopsin complex breaks down. This process is called bleaching of the pigment and it triggers a signal transduction along the optic nerve to the visual cortex in the brain.
In the dark, rhodopsin regenerates.</span>
it's A. urine hope it helped
Because MRI machines create incredibly strong magnetic fields. Metal objects near or in an MRI machine can be pulled into this field with violent force.
Most DNA is located in the cell nucleus (where it is called nuclear DNA), but a small amount of DNA can also be found in the mitochondria (where it is called mitochondrial DNA or mtDNA).
Answer:
The correct answer is letter C.