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A protist's eyespot is a pigmented organelle that is sensitive to light, allowing the protist to move towards the light for feeding/photosynthesis.

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Angela Veum

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3y ago

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What allow some protists to detect light?

eyespot


What organelle allows some protists to detec light?

The eyespot is the organelle that allows some protists to detect light.


What organelle allows sone protists to detect light?

Eyespot is the organelle that some protists use to detect light. It contains pigments that help the organism sense the direction of light and respond accordingly by moving towards or away from it.


What are organelle allows some protists to detect light?

Eyespot/organelle allows some protists to detect light. It is a photosensitive structure that helps these organisms to move towards or away from light sources for survival and photosynthesis.


What is the function of the eye spot in plant like protists?

The eye spot in plant like protists function as a sensory structure.


What is the function of stigma in protists?

The function of it is to store pollen grains


When was Eyespot skate created?

Eyespot skate was created in 1903.


What does the eyespot do for euglena?

The photoreceptive eyespot allows the organism to orient and swim toward light, whichh is helpful for photosysnthesis. Interesting side note: in Euglena, theree is a dark pigment patch just underneath the eyespot. This means that Euglena is detetcing darkness and swimming away from the dark and thereefore inot the light. Without this pigment patch, the eyespot could not function because the cell body is essentially transparent. I'm not sure if this is the same for Chlamydomonas, but I would expetc so.(From: www.gadgetking.com/trends/eyespot+euglena)


What is an eyespot and what is it function?

An eyespot, often called a stigma (derived from Greek for "spot"), is a heavily-pigmented organelle located near the cell membrane that seems to function in light reception in certain single-celled organisms. (It may also refer to a region of light-sensitive cells in the epidermis of certain invertebrates like worms and starfish that performs the same function.) An example of single-celled organisms that have an eyespot are euglenids. These organisms have bright red eyespots, which structurally are pigment-filled shields near the flagellum. Because they are next to the locomotive organelle, stimulation of the eyespot with light also stimulates the flagellum, enabling the euglenid to move in response to light so as to find better light conditions for photosynthesis. Chlamydomonas are another green algae that have an eyespot, this one composed primarily of carotenoids and calcium ions. Considering that photosynthesis and eyespot functions are based on many of the same chemical principles, it's not surprising to find these two things together in many single-celled organisms. Whether eyespots are related to the development of higher-level eyes is currently an open question. A number of evolutionary scenarios suppose that once one gets light-sensitive cells, the further development of complex eyes is a fairly smooth transition.


What function do bacteria and protists help termites to perform?

digestion


What is an example of a protist with an eyespot?

Euglena is a common protist that possesses an eyespot, also known as a stigma. This eyespot allows Euglena to detect light and move towards it, aiding in its photosynthetic process.


Which organism possesses an eyespot?

Algae, such as Euglena, possess an eyespot. The eyespot is a light-sensitive organelle that helps the organism detect light for basic orientation and movement towards light sources.