Transmission electron micrograph of a plant cell from the root tip meristem of maize,Zea mays. The meristem is a region of active cell division,from which more permanent specialised tissue is derived. Principal sitesare root tips & stem apices. Dominant in the cell is the nucleus (oval) holding the cell's genetic information. The nucleolus (dark circle) contains RNA & proteins. The cytoplasm holds numerous bodies; vacuoles (white ovals),lipid droplets (smooth gray),proplastids (dark gray with white starch inclusions),mitochondria (granular gray ovals) & ribosomes (black dots) free in the cytoplasm. Mag:X12.000 (10x8 size) | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / Burgess, Dr. Jeremy |
Taille de l’image : | 4753 px × 3718 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |