The oxygen end of the molecule has a slight negative charge, and the hydrogen end has a slight positive charge. Adjacent water molecules are joined by ______ bonds. Relative to a pH of 6, a pH of 4 has a ______.
Maca redirects here. For other uses, see Maca (disambiguation). Lepidium meyenii (maca) is an herbaceous biennial plant of the crucifer family native to the high Andes of Peru. It was found at the Meseta de BombÃ³n close to Junin Lake in the Andes. It is grown for its fleshy hypocotyl (a fused hypocotyl and taproot), which is used as a root vegetable and a medicinal herb.
Maca History & Info. Maca root has been used by native Indians in Peru as a vital ingredient to health for thousands of years. Maca's use goes back to around 3800 B.C., when Peruvian Indians cultivated and ate it for both its nutritional and medicinal value.aca is a radish-like root vegetable that is related to the potato family, and is tuberous and spherical in form. The root itself is about three to six centimeters across and 4.7 centimeters in length. There are four recognized types of Maca Root based on the color of the root.