2025 DAM Aeromedical Practice Exam – Full Preparation Guide

Question: 1 / 400

Are cone cells primarily used at night?

True

False

Cone cells are specialized photoreceptors in the retina that operate primarily in bright light conditions and are responsible for color vision and high acuity. They function best under well-lit conditions, allowing for detailed visual perception and the ability to distinguish between different colors.

In contrast, rod cells, which are another type of photoreceptor, are more sensitive to low light levels and are responsible for vision in dimly lit environments, such as at night. The primary role of rods is to provide vision in dark or low-light conditions.

Therefore, since cone cells are not designed for nighttime or low-light visibility but rather for bright light scenarios, the assertion that they are primarily used at night is incorrect. This understanding reinforces the idea that the response indicating that the statement is false is indeed accurate.

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Only in low light

Only in bright light

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