Cone And Rod Cells

Question 1

Explain what causes vision in the fovea to have high visual acuity

Answer 1

Impulses sent along separate neurone from each receptor cell

Question 2

When one unit of light energy falls on cells 1 and 2 which are rods only one spot of light is seen but when light falls on cells 2 and 3 which are also rods two spots of light are seen. Why?

Answer 2

1&2 share a neurone to the brain where as 2&3 have separate neurons to the brain

Question 3

What causes vision in the fovea to be in colour

Answer 3

3 different types of cone cell that pick up different colours