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.
Today, water yam is the most widely distributed of all the yams, being grown in all parts of the tropics. It is the most extensively cultivated species of ya in the West Indies, the Pacific Islands and tropical Asia. It is known as 'greater yam' or 'ten month' yam. It can be found in some places in Nigeria.