Question

(iv) Name the cells of the retina and their respective
pigments which get activated (
1) in the dark
2) in light.

Answer 1

Answer:

these cells are photoreceptor

photoceptor are of 2types

rod and cones

hope it helps u

Answer 2

Answer:

The light is mapped as an image along the surface of the retina by activating a series of light-sensitive cells known as rods and cones.

1) Rods function mainly in dim light and provide black-and-white vision. The rods are most sensitive to light and dark changes, shape and movement and contain only one type of light-sensitive pigment. Rods are not good for color vision.

2) The human eye only has about 6 million cones. Many of these are packed into the fovea, a small pit in the back of the eye that helps with the sharpness or detail of images. Other animals have different numbers of each cell type.

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