Multiple Choice
Compound eyes are advantageous for small prey species to detect a potential predator because __________.
46. Sensory Systems
Sensory System
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Difficulty in distinguishing red from green is most likely due to a defect in which cells?
A
Rod cells
B
Lens cells
C
Cornea cells
D
Iris cells
E
Cone cells
Verified step by step guidance1
Understand that the human eye contains two main types of photoreceptor cells: rod cells and cone cells. Rod cells are responsible for vision in low light conditions, while cone cells are responsible for color vision and function best in bright light.
Recognize that there are three types of cone cells, each sensitive to different wavelengths of light: short (S), medium (M), and long (L) wavelengths, which correspond to blue, green, and red light, respectively.
Identify that difficulty in distinguishing red from green is a type of color vision deficiency known as red-green color blindness. This condition is typically caused by a defect or absence in the M (green) or L (red) cone cells.
Eliminate the other options: Rod cells are not involved in color vision, lens cells focus light onto the retina, cornea cells protect the eye and help focus light, and iris cells control the size of the pupil.
Conclude that the defect in distinguishing red from green is most likely due to a problem with the cone cells, specifically the M or L cone cells, which are responsible for detecting green and red light, respectively.
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