BIO NMDCAT Receptors

nmdcat.online July 7, 2026

Among the photoreceptors, rod cells differ fundamentally from cone cells due to their

A. Ability to detect color

B. Lower sensitivity to light

C. High convergence onto bipolar cells

✓

D. Location exclusively in the fovea

📝 Explanation

Many rod cells converge onto a single bipolar cell (and many bipolar cells onto a ganglion cell), increasing light sensitivity through spatial summation but sacrificing visual acuity. Cones have a 1:1 ratio in the fovea.

📖 Additional Information

Ability to detect color
Lower sensitivity to light
High convergence onto bipolar cells
Location exclusively in the fovea

Many rod cells converge onto a single bipolar cell (and many bipolar cells onto a ganglion cell), increasing light sensitivity through spatial summation but sacrificing visual acuity. Cones have a 1:1 ratio in the fovea.

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