This blog will cover and explain the specification for Edexcel triple science course 2013 for biology. Hope it helps :)
rods are cells which detect light and cones are cells which detect colour
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
Thanks for clearing that up. Just notes I got from my teacher but will look at the website. Thanks!
do you not need to know how to label a diagram of an eye?
I think you need to know the diagram as well as the description of the conjuctiva, cornea, iris, lens, retina, pupil, optic nerve
The Biology Syllabus has changed.... New Syllabus Blog: http://igcse-biology-2017.blogspot.hk
more at http://igcse-biology-notes.blogspot.hk/2017/06/287-describe-structure-and-function-of.html