Submit. Â· just now. Report Abuse. proton-motive force= energy that is generated by the transfer of protons or electrons across an energy-transducing membrane and that can be used for chemical, osmotic, or mechanical work.
Theyre also stupid-easy to propagate. Take some stem cuttings and pop them in water. When you see long roots, pop them into a pot. The cuttings I've taken from these plants aren't true hoya babies because cuttings are actually a clone from the mother plant. That is, they are the same age as the mother, albeit smaller.
After they start to mature, onions often do quite well with just rainwater, depending on the level of rainfall in your area. However, supplemental water may be necessary in drier areas. In general, you can water every 5-7 days during the initial growth period and during dry spells.