Lecture 1 Cell membrane & specialization_organized_organized.pdf

Cell membrane (Plasmalemma): * Light microscope (L/M): not visible. Very thin (7.5-10 nm). * Electron microscope (E/M): 1- Low magnification: single electron-dense (dark) thin line. 2- High magnification: two electron-dense lines separated by an electron-lucent (pale) intermediate zone → trilaminar...

Cell membrane (Plasmalemma): * Light microscope (L/M): not visible. Very thin (7.5-10 nm). * Electron microscope (E/M): 1- Low magnification: single electron-dense (dark) thin line. 2- High magnification: two electron-dense lines separated by an electron-lucent (pale) intermediate zone → trilaminar appearance. Describe EM appearance of cell membrane Trilaminar appearance