نموذج اختبار
Course:
choose the correct answer:
- The approximate thickness of ultra-thin sections is generally about
a. 70-80 Nanometers
b. 0.5-0.7 Micrometers
c. 0.5-0.7 Nanometers
d. 70-80 Micrometers
-Semi-thin sections are stained with
a- Uranyle acetate and lead citrate.
b- Join’s stain.
c- Osmium tetroxide.
d- Methylene blue stain.
-ultrathin sections are examine under
a. Light microscope.
b. Scanning Electron Microscope.
c. Transmission Electron Microscope.
d. Fluorescence Microscope.
answer the following questions
·
Defects during polymerization .
·
·
Advantages of using glass knife.
·
Purpose of primary trimming.