Potato Tissue


View starch grains in potato tissue. Though you can't tell with a light microscope, these are enclosed in plastids.


View series of images of the various stages of a starch-containing leucoplast transforming into a chloroplast. This makes explicit that the starch grains are each enclosed in a plastid.

Starch grains will rotate the plane of polarization of polarized light. They glow when seen through crossed polaroids.


Starch treated with iodine turns purple.