You're undergoing <u>DURING</u> cellular respiration. Energy can't really be used up DURING cellular respiration as there are changes, break-downs, and activities undergoing stated for answers A, B, and C. These answers are similar and much reasonable during <em>cellular respiration</em> <em>processing</em> than energy being used up.
The altered protein affected the function of the cell membrane. The cell membrane which contain a bilayer control the movement of substance in and out of the cell and organelles. Due to this it is selective permeable to ion and organic molecules.
