2007-05-21 19:19:07 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Biology
The envelope surrounding the nucleus of animal and plant cells and of single-celled organisms has been found by electron microscopy to be made up of two more or less parallel membranes with a spacing in the range of 100 to 300 A. More information can be found in this original paper by ML Watson:
www.jcb.org/cgi/content/abstract/6/2/147
2007-05-21 19:43:25 · answer #1 · answered by Jesus is my Savior 7 · 0⤊ 0⤋
The width of phospholipid bilayers in animal cells is on the order of 60 Angstroms, though it depends somewhat on the solute.
2007-05-21 19:29:25 · answer #2 · answered by kt 7 · 0⤊ 0⤋
My guess would be that it depends on the cell or the tissue that it's making up. In most cases microscopic.
2007-05-21 20:15:10 · answer #3 · answered by Anonymous · 0⤊ 1⤋