Color Vision & Visual Acuity by Cones

Question 1

Cones–Similar in structure to rods; Contain the photopigment ________ , which contains opsin in one of three forms.

Answer 1

iodopsin

Question 2

The forms of opsin correspond to ________, _________ and _________ cones types

Answer 2

blue, red, and green

Question 3

Each absorbs light of specific __________ and responds by making action potentials.

Answer 3

wavelengths

Question 4

Color perception is based upon: 2 things what are they?

Answer 4

1) which cone types are active (1, 2, or 3 types) and
2) the percentage (%) of each cone type that is active

For example: The color yellow is seen when 50% of red cones and 50% of green cones are
making action potentials

Question 5

Cones also are responsible for _______ _______ –a sharp, finely focused object.

Answer 5

visual acuity