The total length of Long Island is 118 miles (190 kilometers). It is 23 miles (37 kilometers) wide from south to north.<br /><br />Not including Brooklyn and Queens, it is 103.5 miles (166.6 kilometers) long.
zymogen. an inactive precursor that is converted into an active enzyme by action of an acid or another enzyme or by other means; a proenzyme. zymogen cells. the secretory cells that secrete the zymogens.zymogen granules. contained in the cytoplasm of the secretory cells in the relevant gland.n inactive precursor that is converted into an active enzyme by action of an acid or another enzyme or by other means; a proenzyme. zymogen cells. the secretory cells that secrete the zymogens.
1 also called zymogenic cell. Any one of the columnar epithelial cells or the cuboidal epithelial cells that line the gastric glands and secrete pepsinogen and intrinsic factor, which are needed for the digestion and absorption of vitamin B 12 and the normal development of red blood cells.