Cytoplasm of a green Trichodina that lives on the surface of a freshwater snail collected in central Illinois. In this view the abundant endosymbiotic zoochlorellae and a single endosymbiotic bacteriu...

Figure 297 from Chapter 11 (Melanin Pigment) of 'The Cell, 2nd Ed.' by Don W. Fawcett M.D. Epidermal melanocyte from facial skin of an orangutan illustrates the interstitial location of a melanocyte ...

Basal body formation occurs most prominently in the equatorial region of the predivision cell. A new basal body begins to develop perpendicular to the mature basal body at its proximal anterior surfac...

Electron micrograph of corn stunt spiroplasma (CSS) in the wall of the filter chamber (part of the alimentary canal) and in the hemolymph (he) of a vector leafhopper D. gelbus. Note the mainly pleiomo...

Collagen fibrils and mineralization in the external layer of Fundulus heteroclitus scale. The external layer is the second of three layers closest to the dermis of an elasmoid. It is composed of thin ...

These two micrographs show the outer cell surface of the epithelial cell border in intestine (upper) and stomach (lower) tissue. This surface, called the glycocalyx, is composed of negatively charged...

This electron micrograph shows a region of the brush border of the cat intestine. Tufted and branched polysaccharide filaments, each a few nanometers thick, extend from the microvilli to make up the ...

This electron micrograph highlights a darkly-stained glycocalyx rim of the brush border of the intestinal epithelium of the cat, stained en bloc with colloidal thorium. The glycocalyx is composed of ...

The image shows an anchor cell (red) in the developing female reproductive system of C. elegans pushing through the basement membrane (green) that surrounds it. This type of invasion is also often see...

Light micrograph of elastic cartilage of the ear. This type of cartilage is made from a protein called elastin and is formed from a network of elastic fibers and collagen. The fibers form bundles whic...