---

Number of membrane disks in rod photoreceptor cell

Range	~2,000 disks/cell
Organism	Toad
Reference	F. Rieke and D. A. Baylor, Single-photon detection by rod cells of the retina, Rev. Mod. Phys. 70, 1027 – Published 1 July 1998 DOI: link p.1031 caption to figure 5a
Comments	“Outer-segment discs. A toad rod contains about 2000 membrane discs separated by about 30 nm-the initial steps of the phototransduction process occur as different molecular species diffuse and collide on the disc surface.”
Entered by	Uri M
ID	111343