Question

The function of rods and cones of a vertebrate retina is to ______.

Options

• focus light

• amplify light

• transduce light

• filter light

Answer 1

The function of rods and cones of a vertebrate retina is to transduce light.

Explanation:

Rods and cones are specialised photoreceptor cells that convert light energy into electrical signals, a biological process known as phototransduction. Rods are highly sensitive and enable vision in low light, while cones detect colour and provide sharp detail in bright light. These generated electrical impulses are then transmitted to the brain via the optic nerve to form visual images.