Active Absorption: Primary Active Transport, Pumps, Secondary Active Transport, Symport, Antiport, and Cytochrome Pump
Cytochrome Pump
This theory was put forth by H. Lundegardh in 1954 after he saw that respiration and anion absorption had a quantitative link, but that cation absorption lacked such a relationship. Also observed was that cyanide or even carbon monoxide impeded salt respiration and anion absorption. He consequently proposed that the cytochrome system may transport anions across the membrane and that anion absorption is independent of the cation. Using respiratory intermediates directly as fuel, energy is produced. “Anion respiration” or “salt respiration” is the term used to describe the rate of respiration that is completely governed by anion absorption. Ground respiration is the rate of respiration (apart from anion respiration) that is seen in distilled water.
Total respiration t= Ground respiration + Salt or anion respiration