Exam 2: Light and the Eyes

A complex web of connections (which include the amacrine cells, the horizontal cells, and the bipolar cells) extends from the photoreceptors to the retinal ganglion cells. What is the advantage gained by the visual system from this complex processing, rather than simply propagating (or passing forward) the basic signal initially transmitted from each photoreceptor?

The process of focusing light on the retina is performed by the cornea and the:

Which statement is FALSE with regard to cataracts?

The "business ends" of the photoreceptors, where transduction occurs, are embedded in a layer of cells called the:

The degree to which a photopigment molecule absorbs light of different wavelengths is known as: