Ã Basal body- anchors the flagellum to the cell wall and plasma membrane. Ã Hook- anchors the flagellum to the cell wall. Ã Filament- outermost region on the flagellum, composed of the protein flagellin. Ã *flagellum is made by flagelly :)
Keratoconus does not make people go blind. However the changes to the cornea can make it impossible for the eye to focus without eyeglasess or contact lenses. Keratoconus can be dangerous if laser vision correction surgery (LASIK or PRK) is performed on the eye.
Green vegetables like spinach, kale and broccoli are particularly rich in two antioxidants called lutein and zeaxanthin, which produce a substance which scientists think helps protect the eyes against age-related macular degeneration (AMD), the leading cause of irreversible blindness in Western societies.