Question

Photoreceptor cells are modified

• A. unipolar neurons
• B. bipolar neurons
• C. multipolar neurons
• D. interneurons

Answer 1

The correct option is B bipolar neurons

Photoreceptor cells are modified bipolar neurons. Bipolar neurons have 1 axon and 1 dendrite and are mostly found in the retina of the eye. These are embedded in the pigment layer of the retina.
In unipolar neurons, a single branch leaves the cell body and splits close to the cell body into a trunk. These are found usually in the embryonic stage.
Multipolar neurons have 1 axon and 2 or more dendrites. These are mainly found in the cerebral cortex.
Interneurons connect various neurons within the brain and spinal cord.