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.

7 comments:

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

    ReplyDelete
    Replies
    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

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

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

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

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

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

    ReplyDelete
  5. more at

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

    ReplyDelete