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Student learn
- identify photoreceptor cells as those containing light sensitive pigments and explain that these cells convert light images into electrochemical signals that the brain can interpret
- describe the differences in distribution, structure and function of the photoreceptor cells in the human eye
- outline the role of rhodopsin in rods
- identify that there are three types of cones, each containing a separate pigment sensitive to either blue, red or green light
- explain that colour blindness in humans results from the lack of one or more of the colour-sensitive pigments in the cones
- process and analyse information from secondary sources to compare and describe the nature and functioning of photoreceptor cells in mammals, insects and in one other animal
- process and analyse information from secondary sources to describe and analyse the use of colour for communication in animals and relate this to the occurrence of colour vision in animals
Glasses that allow Colour Blind people to see
