Why Do Some Photoreceptors Respond to Blue Light, While Others

question 11

Multiple Choice

Why do some photoreceptors respond to blue light, while others respond to red or green?

• A) There are differences in the amino acid sequences for their opsin proteins.
• B) There are differences in the amino acid sequences for their 11-cis retinal.
• C) Photoreceptors for different colors are found at different depths within the retina.
• D) Photoreceptors for different colors utilize center-surround organization in different ways.
• E) Photoreceptors for different colors regenerate at different rates, leading to the perception of color.

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