Photo Researchers ftp March 2011

Color enhanced transmission electron micrograph of a plastid containing starch.

Color enhanced transmission electron micrograph of a plastid containing starch.

Color enhanced transmission electron micrograph showing a chloroplast, the organelle in plant cells responsible for photosynthesis.

Color enhanced transmission electron micrograph showing a chloroplast, the organelle in plant cells responsible for photosynthesis.

Color enhanced transmission electron micrograph showing a developing chloroplast with a prolamellar body (etioplast). An etioplast is a chloroplast th...

Color enhanced transmission electron micrograph showing a developing chloroplast with a prolamellar body (etioplast). An etioplast is a chloroplast th...

Color enhanced transmission electron micrograph showing a developing chloroplast with a prolamellar body (etioplast). An etioplast is a chloroplast th...

Color enhanced transmission electron micrograph of a chloroplast grana. Grana are stacks of thylakoids, the site of photosynthesis.

Color enhanced transmission electron micrograph of a chloroplast grana. Grana are stacks of thylakoids, the site of photosynthesis.

Color enhanced transmission electron micrograph of a chloroplast grana. Grana are stacks of thylakoids, the site of photosynthesis.

Color enhanced transmission electron micrograph showing a Golgi apparatus in a plant cell. The Golgi apparatus is an organelle that processes proteins...

Color enhanced transmission electron micrograph showing a Golgi apparatus in a plant cell. The Golgi apparatus is an organelle that processes proteins...

Color enhanced transmission electron micrograph showing a Golgi apparatus in a plant cell. The Golgi apparatus is an organelle that processes proteins...

Color enhanced transmission electron micrograph showing a cell wall, plasma membrane, and cytoplasm.

Color enhanced transmission electron micrograph showing a cell wall, plasma membrane, and cytoplasm.

Color enhanced transmission electron micrograph showing a cell wall, plasma membrane, and cytoplasm.

Color enhanced transmission electron micrograph showing a mitochondrion in a plant cell. The mitochondrion is the organelle that provides the cell wit...

Color enhanced transmission electron micrograph showing a mitochondrion in a plant cell. The mitochondrion is the organelle that provides the cell wit...

Color enhanced transmission electron micrograph showing a mitochondrion in a plant cell. The mitochondrion is the organelle that provides the cell wit...

Color enhanced transmission electron micrograph showing a plant cell.

Color enhanced transmission electron micrograph showing a plant cell.

Color enhanced transmission electron micrograph showing a plant cell.

Color enhanced transmission electron micrograph of a section of Tobacco (Nicotiana tabacum) root, showing starch granules in plastid. 13,760x @ 35 mm.

Color enhanced transmission electron micrograph of a section of Tobacco (Nicotiana tabacum) root, showing starch granules in plastid. 13,760x @ 35 mm.

Color enhanced transmission electron micrograph of a section of Tobacco (Nicotiana tabacum) root, showing starch granules in plastid. 13,760x @ 35 mm.

Color enhanced image of a human embryo.

Color enhanced image of a human embryo.

Color enhanced schematic of the microtrabecular lattice in the cytoplasm of a thinly spread cell in culture as seen with the high voltage electron mic...

Color enhanced schematic of the microtrabecular lattice in the cytoplasm of a thinly spread cell in culture as seen with the high voltage electron mic...

Color enhanced schematic of the microtrabecular lattice in the cytoplasm of a thinly spread cell in culture as seen with the high voltage electron mic...

Color enhanced cross sectional transmission electron micrograph of spermatozoa in the testis of a moth. As with many Lepidopteran spermatozoa, the fla...

Color enhanced cross sectional transmission electron micrograph of spermatozoa in the testis of a moth. As with many Lepidopteran spermatozoa, the fla...

Color enhanced cross sectional transmission electron micrograph of spermatozoa in the testis of a moth. As with many Lepidopteran spermatozoa, the fla...

Transmission electron micrograph (TEM) of the thick surface membranes and the adjacent rough endoplasmic reticulum of two pancreatic acinar cells from...

Transmission electron micrograph (TEM) of the thick surface membranes and the adjacent rough endoplasmic reticulum of two pancreatic acinar cells from...

Transmission electron micrograph (TEM) of the thick surface membranes and the adjacent rough endoplasmic reticulum of two pancreatic acinar cells from...

llustration of the location, component, and membrane relationships at the junctional complex between epithelial cells. At right is a detail of a gap j...

llustration of the location, component, and membrane relationships at the junctional complex between epithelial cells. Microvilli (at top, red); Zym...

llustration of the location, component, and membrane relationships at the junctional complex between epithelial cells. At right is a detail of a gap j...

Fluid-mosaic model of the cell membrane, which envisions a two-dimensional solution of oriented lipids and globular proteins. The lipid bilayer is ass...

Fluid-mosaic model of the cell membrane, which envisions a two-dimensional solution of oriented lipids and globular proteins. The lipid bilayer is ass...

Fluid-mosaic model of the cell membrane, which envisions a two-dimensional solution of oriented lipids and globular proteins. The lipid bilayer is ass...

Transmission electron micrograph (TEM) of rhinoviruses, which cause the common cold. Magnification: x200,000.

Transmission electron micrograph (TEM) of rhinoviruses, which cause the common cold. Magnification: x200,000.

Transmission electron micrograph (TEM) of rhinoviruses, which cause the common cold. Magnification: x200,000.

A woman with acute psoriasis.

A woman with acute psoriasis.

Pityriasis rosea, a common acute and benign skin rash that spreads across the body and is characterized by itchy lesions.

Erythroderma (also known as Exfoliative dermatitis, Dermatitis exfoliativa, and Red man syndrome), an inflammatory skin disease, characterized by scal...

The seizures of epilepsy are dramatically demonstrated by the EEG traces. The largest and most regular electrical activity of the brain occurs in an a...