Active transport requires __ and __ in order to function correctly. a) nucleic acids, membrane proteins b) energy, membrane proteins c) energy, peripheral proteins d) energy, nucleic acids

Iknow the answer to 13 is b and 14 is d. i just need to know why the correct answers are correct

Calculate the expected ph values of the buffer systems from the experiments (a,b,c,d), using the henderson- hasselbalch equation, ph-pka+log[a-]/[ha]. use for pka values carbonic acid= 6.37, and acetic acid= 4.75.

Phosphorous acid, h3po3(aq) , is a diprotic oxyacid that is an important compound in industry and agriculture. the values of phosphorous acid are 1.30 6.70 calculate the ph for each of the given points in the titration of 50.0 ml of 1.5 m h3po3(aq) with 1.5 m koh(aq) .