Answer the following questions concerning rod photopigment and physiology or complete the statements as indicated. 1. The bent ll-cz's form of retinal is combined with a protein called to form the photoreceptor pigment called 2. The light—induced event during which the photoreceptor pigment breaks down into its two components and retinal assumes its straighter shape is called 3. Retinal is produced from vitamin , which is ordinarily stored in large amounts by the 4. What ionic and electrical events occur in the photoreceptors (rods) when it is dark? 5. How is this changed in the light?

pur-new-sol

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