What wavelength corresponds to the peak absorption of M cones?

What wavelength corresponds to the peak absorption of M cones?

• A. 426 nm
• B. 507 nm
• C. 530 nm
• D. 557 nm

Answer: (C)

The peak absorption of M cones, which are responsible for medium-wavelength light perception, corresponds to approximately 530 nm. This wavelength is significant in the context of color vision because M cones are particularly sensitive to green light. Their sensitivity plays a crucial role in our ability to perceive colors in the green spectrum, which is essential for distinguishing between various shades of color in our environment. The choice of 530 nm reflects the biology of the photopigment found in M cones, which has evolved to be most effective within this wavelength range. Understanding this peak absorption is important for grasping how the human visual system interprets colors and how the cone cells work together to allow for a complete color vision experience.

The peak absorption of M cones, which are responsible for medium-wavelength light perception, corresponds to approximately 530 nm. This wavelength is significant in the context of color vision because M cones are particularly sensitive to green light. Their sensitivity plays a crucial role in our ability to perceive colors in the green spectrum, which is essential for distinguishing between various shades of color in our environment.

The choice of 530 nm reflects the biology of the photopigment found in M cones, which has evolved to be most effective within this wavelength range. Understanding this peak absorption is important for grasping how the human visual system interprets colors and how the cone cells work together to allow for a complete color vision experience.