Saturday 23 February 2013

2.87 describe the structure and function of the eye as a receptor

The eye is a receptor of light, it has light receptor cells in its retina. These cells turn stimuli into electrical impulses.

8 comments:

  1. rods are cells which detect light and cones are cells which detect colour

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    1. Your statement is really helpful in describing the difference in functions between the different cells. Be careful though because colour is light, so they both detect light- there are just different cone cells for different wave lengths of light so you are able to distinguish between different colours :)

      This is A level stuff, but if anyone's interested there's some info here:
      http://hannahhelpbiologya2.blogspot.co.uk/2015/02/the-basic-structure-of-pacinian.html

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  2. Thanks for clearing that up. Just notes I got from my teacher but will look at the website. Thanks!

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  3. do you not need to know how to label a diagram of an eye?

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    1. I think you need to know the diagram as well as the description of the conjuctiva, cornea, iris, lens, retina, pupil, optic nerve

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  4. The Biology Syllabus has changed.... New Syllabus Blog:

    http://igcse-biology-2017.blogspot.hk

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  5. more at

    http://igcse-biology-notes.blogspot.hk/2017/06/287-describe-structure-and-function-of.html

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