GLYCEROL-PHOSPHATE SHUTTLE SYSTEM
In prokaryotes, shuttle mechanism is absent. They always get 38 ATP from aerobic respiration of 1 glucose mol.
Cyanide inhibits the activity of cytochrome oxidase & inhibits the oxidation of cyto-a3.
In mitochondria, of some plants alternative oxidase system is present, in which ETS continues even in presence of cyanides. This type of respiration is known as cyanide resistance respiration or Alternate electron pathway. Ex. Spinacia, Pisum.