Question Detail
Question
Which element is required by fungal cells for transmembrane proton motive force vital for fungal nutrition?
Correct Answer
Option D is the correct answer.
Detailed Explanation
Hydrogen, obtained as protons from acidic environments, provides the transmembrane proton motive force vital for fungal nutrition. Intracellular acidic pH (around 5–6) maintained by hydrogen ions is necessary for fungal metabolism.
Hint
Consider which element, in ionic form, creates the proton gradient across membranes.