Determine which statements regarding aconitase are true. An equilibrium mixture contains less than 10% citrate, but the isocitrate dehydrogenase reaction is exergonic, and draws the aconitase reaction to the left. The iron of the iron-sulfur center forms a complex with the substrate that involves two hydroxyl groups from citrate. Aconitase is stereospecific. The reaction proceeds through the intermediate cis‑aconitate. Aconitase contains the iron‑sulfur center Fe2S2Fe2S2 .

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c. heat could easily travel through the molecules in the air and escape/enter the flask. removing the air slows down the heat transfer.  

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.

distance, luminosity, brightness, radius, chemical composition, and temperature