Which statement best describes what happens during the redox reaction between nadh and complex i of the electron transport chain? a. nadh is oxidized by fadh2 which is then immediately oxidized in complex complex ii. b. nadh is oxidized as a pair of electrons, which are transferred to the etc and 4 four h+ are pumped into the intermembrane space. c. ubiquinone receives two electrons from nadh and then moves throughout the hydrophobic interior of the etc membrane where it is oxidized by complex complex ii. d. two electrons from nadh are used to reduce oxygen gas (o2), which picks up two h+ form from the matrix to produce water.

Acontainer holds 35.8 moles of gas under 10.0 atm of pressure at 70.0 c. what is the volume of the container?

The scheme below is from a series of reactions that are part of a synthesis of vitamin a. answer the following questions with reference to this scheme. (i) what is "reagent a"? (ii) draw a step-by-step mechanism which explains the formation of compound c from compound b (iii) which reagents would you use to form compound e from compounds c and d (reagents b and c)? for each reagent suggested above in (ii) explain the role of the reagent in the reaction to (iv) form compound e. you may wish to do this by drawing a mechanism. 1. addition of reagent a но reagent a 2. н, о" thо oh нон-с compound a. compound b. compound c .ch-оh 1. reagent b "сно 2. reagent c сh oh compound e. compound d.

Which change in temperature is the smallest? a change of 1 thomson degree a change of 1 kelvin degree a change of 1 fahrenheit degree a change of 1 celsius degree