Alternate header for print version

Public Domain: This image is in the public domain and thus free of any copyright restrictions. However, as is the norm in scientific publishing and as a matter of courtesy, any user should credit the content provider for any public or private use of this image whenever possible. Learn more
*CIL – Cell Image Library accession number. Please use this to reference an image.

CIL:36750*  Cite 

Quick-freeze deep-etch image of a DV-III containing paracrystalline sheets in its lumen. The sheets have parallel rows of subunits spaced at 20nm center-to-center but the chemical nature of the sheets is unknown; they do not appear to be acid phosphatase positive. TEM taken on 6/7/88 by C. Schroeder with Zeiss 10A operating at 80kV. Neg. 24,800X. Bar = 0.2µm. A print of the negative was scanned and processed in Photoshop. This image is best used for qualitative analysis. Additional information available at (

Biological Sources
NCBI Organism Classification
Paramecium multimicronucleatum
Cell Type
cell by organism
eukaryotic cell
Eukaryotic Protist
Ciliated Protist
Cellular Component
food vacuole
vesicle lumen
Biological Context
Biological Process
digestive system process
Richard Allen (University of Hawaii)
C. Schroeder
Digital Object Identifier (DOI)
Archival Resource Key (ARK)
Image Type
transmission electron microscopy (TEM)
illumination by electrons
Image Mode
electron density
Parameters Imaged
elastic scattering of electrons
electron density
Source of Contrast
differences in deposition of metal shadow
Visualization Methods
transmission electron microscopy (TEM)
Processing History
shadowing and plating
recorded image
Print of negative scanned for Photoshop
Data Qualifiers
processed data
Spatial Axis Image Size Pixel Size
X 2124px ——
Y 2622px ——