The diagram is schematic representation of the electron transport mechanism in mitochondria. Label the diagram to complete the model.

The big blue area is the mitochondrial matrix. This is where the citric acid cycle takes place; also known as the Krebs cycle or Tricarboxylic acid cycle. The orange, green, and red shapes are (possibly) the complexes I, III, and IV respectively. At Complex IV (red), O2 or oxygen enters and H20 or water comes out as by product. The + (plus signs) are the protons which can be depicted as H+ in some diagrams. These + / protons drive the ATP synthase (yellow) to sort of turn around like a motor; and with every turn, ADP combined with inorganic phosphate (Pi in some diagrams) comes out as ATP -- the energy currency of the cell.

gradman555p98x9p gradman555p98x9p · Answer 2 · 2018-11-09T23:02:20+01:00

The right answer is mentionned in the picture.

(cytoplasm is supposed to be the outside part of the mitochondria, but there's not a label for it).

An electron transport chain is a series of enzymes and coenzymes that globally perform two actions simultaneously: it transfers electrons from electron donors to electron acceptors during successive redox reactions, and ensures the pumping of protons or other cations through a biological membrane. This has the effect of generating a proton concentration gradient across this membrane, resulting in an electrochemical gradient whose potential energy can be recovered by ATP synthases to phosphorylate ADP molecules into ATP. The final acceptor of electrons is usually oxygen in aerobic organisms, but may be another oxidant in some species.