kerato- or kerat- also cerato- or cerat- pref. 1. Horn; horny: keratosis. 2. Cornea: keratectomy. [Greek kerÄto-, horn, from keras, kerÄt-; see ker- in Indo-European roots.] kerato- or before a vowel kerat- combining form 1. indicating horn or a horny substance: keratin; keratogenous. 2. (Medicine) indicating the cornea: keratoplasty. [from Greek kerat-, keras horn] kerato- a combining form meaning âcorneaâ: keratoplasty.
Early root growth is one of the functions of the apical meristem located near the tip of the root. The meristem cells more or less continuously divide, producing more meristem, root cap cells (these are sacrificed to protect the meristem), and undifferentiated root cells.
Apical meristem. Permanently embryonic tissue involved in cell division at the apices of plant roots and stems, and forming dynamic regions of growth. These apical meriÂ­stems, usually consisting of small, densely cytoplasmic cells, become established during embryo development.ermanently embryonic tissue involved in cell division at the apices of plant roots and stems, and forming dynamic regions of growth. These apical meriÂ­stems, usually consisting of small, densely cytoplasmic cells, become established during embryo development.