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The eyespot apparatus (or stigma) is a photoreceptive organelle found in the flagellate or (motile) cells of green algae and other unicellular photosynthetic organisms such as euglenids. It allows the cells to sense light direction and intensity and respond to it, prompting the organism to either swim towards the light (positive phototaxis ...
The eyespot is located near the cell equator. It is composed of a carotenoid -rich granule layer in the chloroplast which act like a light reflector. [ 6 ] The main function of the eyespot is the phototaxis , which consist of the movement (with the flagella ) related to a light stimulus. [ 7 ]
Eyespot (mimicry), a color mark that looks somewhat like an eye; Eyespot, a sensory organ of invertebrates; see simple eye in invertebrates; Eyespot, a type of eye in some gastropods, a part of sensory organs of gastropods; Eyespot apparatus, a photoreceptive organelle found in the flagellate (motile) cells unicellular photosynthetic organisms
The incoming Trump administration is preparing a list of countries to which it may deport migrants when their home countries refuse to accept them, according to three sources familiar with the plans.
It possesses an eyespot, a small area highly sensitive to light, [41] [42] which triggers the two flagella differently. [43] Those responses are adaptive, on a timescale matched to the rotational period of the cell body, [ 44 ] [ 45 ] [ 46 ] and allow cells to scan the environment and swim toward light. [ 47 ]
Granger’s family and team have since confirmed that the 81-year-old rep is indeed at an independent living facility but denied reports that she is residing within the facility’s memory care ...
A bride and groom can't agree on the size of their wedding — so they've decided to each plan their own event. In a post on Reddit's "Wedding Shaming" forum, a user shared that their sister-in ...
They may be a form of self-mimicry, to draw a predator's attention away from the prey's most vulnerable body parts. Or they may serve to make the prey appear inedible or dangerous. Eyespot markings may play a role in intraspecies communication or courtship; a well-known example is the eyespots on a peacock's display feathers.