DALLAS â September 3, 2014 â Americans paid an average of $137 per night for hotel accommodations in the U.S. during the first six months of 2014 â an increase of five percent compared to the same period in 2013 â according to the latest data from the biannual Hotels.comÂ® Hotel Price Indexâ¢ (HPIÂ®) .ALLAS â September 3, 2014 â Americans paid an average of $137 per night for hotel accommodations in the U.S. during the first six months of 2014 â an increase of five percent compared to the same period in 2013 â according to the latest data from the biannual Hotels.comÂ® Hotel Price Indexâ¢ (HPIÂ®) .
The energy used in the electron transport change pumps protons across the inner mitochondrial membrane from the inner matrix to the intermembrane space, producing a strong hydrogen concentration gradient.
The function of the electron transport chain is to produce a transmembrane proton electrochemical gradient as a result of the redox reactions. If protons flow back through the membrane, they enable mechanical work, such as rotating bacterial flagella.n the mitochondrial electron transport chain electrons move from an electron donor (NADH or QH 2) to a terminal electron acceptor (O 2) via a series of redox reactions.