Determine whether each of the following causes an increase or decrease in the activity of the electron transport chain.

large difference in H+ concentration across the inner mitochondrial membrane

high ADP concentration

low NADH concentration

high phosphate concentration

low oxygen concentration

Acoal-fired plant generates 600 mw of electric power. the plant uses 4.8 x 10^6 kg of coal each day, and the heat of combustion of coal is 3.3x 10^7 j/kg. the steam that drives the turbines is at a temperature of 300° c, and the exhaust water is at 37° c. (a) what is the overall efficiency of the plant for generating electric power? (b) how much thermal energy is exhausted each day? (c) what is the change in entropy of the universe for this heat engine? (d) using the same heat reservoirs, what is the maximum possible (carnot) efficiency for a heat engine?

In which of the following cases is work being done on an object? question 2 options: pushing against a locked door carrying a box down a corridor pulling a trailer up a hill suspending a heavy weight with a strong

Which type of bond is found between the atoms of a molecule? a. metallic b. delocalized electron c. covalent d. ionic