GC: n CT: X-rays are a form of electromagnetic radiation, similar to visible light. Unlike light, however, x-rays have higher energy and can pass through most objects, including the body. Medical x-rays are used to generate images of tissues and structures inside the body. If x-rays travelling through the body

GC: n CT: Xylan, which is a key component of the plant cell wall, consists of a backbone of beta-1,4-linked xylose residues that are decorated with arabinofuranose, acetyl, 4-O-methyl d-glucuronic acid and ferulate. The backbone of xylan is hydrolysed by endo-beta1,4-xylanases (xylanases); however, it is unclear whether the various side-chains

GC: n CT: Xyloid lignite differs from attital lignite in containing more than 50 percent anthraxylon, a material derived from woody parts of plants. Xyloid lignite is generally banded and original plant structures are well preserved. Most Texas lignite is of the xyloid type, although it commonly contains considerable amount

GC: n CT: Xylose (cf. Greek ξυλος, xylos, “wood”) is a sugar first isolated from wood and named for it. Xylose is classified as a monosaccharide of the aldopentose type, which means that it contains five carbon atoms and includes a formyl functional group. It is the precursor to hemicellulose,