rods vs cones Archives - Online Biology Notes A Complete notes for Students Fri, 24 Jan 2020 11:40:29 +0000 en-US hourly 1 Difference between rods and cones https://www.onlinebiologynotes.com/difference-rods-cones/ Mon, 15 Jan 2018 18:01:35 +0000 http://www.onlinebiologynotes.com/?p=932 Difference between rods and cones Point of difference RODS CONES Number More numerous, 125 millions in each eye Less than rods, 7 millions in each [...]

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Point of difference

RODS CONES
Number More numerous, 125 millions in each eye Less than rods, 7 millions in each eye
Photosynthetic pigment Rhodopsin Iodopsin
Sensitivity Sensitive to light Less sensitive to light
Vision Dim light (Night vision) Bright light
Visual pigment Only one, black-white 3 visual pigment, to differentiate colors
location periphery of retina center of retina
Speed of response to light Slow response: long integration time Fast response: short integration time
Shape of outer segment Cylindrical Conical
Size Small Large
Light level Scotopic Photopic
Absolute sensitivity High Low
Visual acuity Poor; many rods share common neuron connection to brain Good; each cone cell has its own neuron connection to brain

Difference between rods and cones

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