Answer:
The correct answer would be the active transport across the cell membrane.
The main functions of the cell membrane are a barrier, regulates transport (passive, facilitated, and active), the presence of receptors et cetera.
Only active transport (such as sodium pump, calcium pumps et cetera) requires the input of energy (ATP) for proper functioning. It uses energy to pump substances against the concentration gradient.
Thus, only active transport would be affected if less cellular energy is available.
Answer:
A. It has lost one electron
Explanation:
Since the H has been replaced by a +, this means that the Hydrogen is now a positive ion. For this to happen, it would have to lose an electron.
Gaining one would make it <em>negative</em>, and protons cannot be gained or lost under normal circumstances.
