Department of Energy Argonne National Laboratory Office of Science NEWTON's Homepage NEWTON's Homepage
NEWTON, Ask A Scientist!
NEWTON Home Page NEWTON Teachers Visit Our Archives Ask A Question How To Ask A Question Question of the Week Our Expert Scientists Volunteer at NEWTON! Frequently Asked Questions Referencing NEWTON About NEWTON About Ask A Scientist Education At Argonne Eye Sensitivity
Name: Laura M.
Status: student
Age: 16
Location: N/A
Country: N/A
Date: 2000-2001

My question is dealing with the human eye. I'm aware that there is three kinds of cone cells, but I don't know if they are more sensative to light than the rods are or what and I need to know adzactly what colors each of the three cone cells are sensative to also. (thank you if you respond)

Cone cells, which see colors, are less sensitive than rod cells, which see only black and white. Since rod cells respond to all wavelengths of light, but cones only respond to their specific color ranges, the rod cells can see in less total light.

Richard E. Barrans Jr., Ph.D.
Assistant Director
PG Research Foundation, Darien, Illinois

Click here to return to the Zoology Archives

NEWTON is an electronic community for Science, Math, and Computer Science K-12 Educators, sponsored and operated by Argonne National Laboratory's Educational Programs, Andrew Skipor, Ph.D., Head of Educational Programs.

For assistance with NEWTON contact a System Operator (, or at Argonne's Educational Programs

Educational Programs
Building 360
9700 S. Cass Ave.
Argonne, Illinois
60439-4845, USA
Update: June 2012
Weclome To Newton

Argonne National Laboratory