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Solar cells producing clean energy

Cells and strips mesh

Cells and strips mesh seamless background in blue

cartoon doodle blood cells

cartoon doodle blood cells

3d rendered anatomy illustration of cells. 3d rendered anatomy illustration of cells

Red Blood Cells

Red Blood Cells

This is a new one Solar cells

Human cells background

Human cells background

An image of some cells. An image of some cells.

An image of some cells. An image of some cells.

An image of some cells. An image of some cells.

Angiosperm Morphology: Bulliform Cells in Zea Leaf

cross section:Zea leaf common name: corn magnification: 400x The iso-bilateral leaf of Zea is typical of most monocots. Both upper and lower epidermis are uniseriate and well cutinized. Within the upper, or adaxial, epidermis, large white bulliform cells shrink, allowing the leaf to roll during drought. Stomata are present on both surfaces with guard cells perched above small round substomatal chambers. As with most monocots the mesophyll is unspecialized, being composed of compactly arranged somewhat round chlorenchyma cells. Numerous small and occasionally large vascular bundles are arranged in parallel series along the length of the leaf. The vascular bundles are collateral and closed with xylem of vessels and tracheids towards the adaxial surface and phloem of sieve tubes and companion cells towards the abaxial surface. Cambium is not present. Within each bundle a xylem of two oval metaxylem and a single large protoxylem cavity can be seen. Each vascular bundle is wraped by a bundle sheath of thin walled parenchyma cells. Larger bundles are supported towards both surfaces by masses of sclerenchyma that interrupt the mesophyll to form a patchy hypodermis. cross section:Zea leaf common name: corn magnification: 400x The iso-bilateral leaf of Zea is typical of most monocots. Both upper and lower epidermis are uniseriate and well cutinized. Within the upper, or adaxial, epidermis, large white bulliform cells shrink, allowing the leaf to roll during drought. Stomata are present on both surfaces with guard cells perched above small round substomatal chambers. As with most monocots the mesophyll is unspecialized, being composed of compactly arranged somewhat round chlorenchyma cells. Numerous small and occasionally large vascular bundles are arranged in parallel series along the length of the leaf. The vascular bundles are collateral and closed with xylem of vessels and tracheids towards the adaxial surface and phloem of sieve tubes and companion cells towards the abaxial surface. Cambium is not present. Within each bundle a xylem of two oval metaxylem and a single large protoxylem cavity can be seen. Each vascular bundle is wraped by a bundle sheath of thin walled parenchyma cells. Larger bundles are supported towards both surfaces by masses of sclerenchyma that interrupt the mesophyll to form a patchy hypodermis.

Gymnosperm Stem: Two Year Pinus

cross section: Pinus stem magnification: 100x During the first year of growth the cutinized epidermis is replaced by protective growth of cork rich periderm. The outer periderm consists of layers of cork cells, the phellem, which produces waterproofing suberin. Cork cells are dead at maturity. Deep to the phellem is a living layer of cork cambium or phellogen and beneath that, layers of cork parenchyma or phelloderm. Many cells in the periderm contain dark staining tannins. The cortex is divided into a thin outer hypodermis of lignified sclerenchyma cells and thicker inner cortex of thin walled parenchyma cells containing chloroplasts. Large resin ducts are surrounded by secretory parenchyma that produces resins and turpentines. Some cells enlarge into dark staining tyloses. Both endoderm and pericycle are inconspicuous. The vascular cylinder or stele in young stems consists of a ring of vascular bundles interspaced with medullary rays of parenchyma cells. Seasonal activity of the cambium replaces the isolated vascular bundles with well-defined annual rings of secondary phloem and xylem. Xylem is endarch with protoxylem found towards center of the stem and younger metaxylem towards the periphery of the stem. Protoxylem consists of annular and spiral tracheids with only tracheids found in metaxylem. True xylem vessels are lacking. Because of the greater production of xylem, the vascular cylinder is dominated by radially arranged rays of secondary xylem interspaced with medullary rays of parenchyma cells. Conspicuous resin ducts are present throughout the xylem. Phloem is endarch but annual growth the of stem makes it difficult to distinguish between older protophloem to the periphery and younger metapholem towards center of the stem. Phloem lacks companion cells, consisting entirely of sieve tubes and phloem parenchyma. Medullary rays in the secondary phloem include protein rich albuminous cells. A well-defined pith of parenchyma cells is interrupted by a few large resin ducts. cross section: Pinus stem magnification: 100x During the first year of growth the cutinized epidermis is replaced by protective growth of cork rich periderm. The outer periderm consists of layers of cork cells, the phellem, which produces waterproofing suberin. Cork cells are dead at maturity. Deep to the phellem is a living layer of cork cambium or phellogen and beneath that, layers of cork parenchyma or phelloderm. Many cells in the periderm contain dark staining tannins. The cortex is divided into a thin outer hypodermis of lignified sclerenchyma cells and thicker inner cortex of thin walled parenchyma cells containing chloroplasts. Large resin ducts are surrounded by secretory parenchyma that produces resins and turpentines. Some cells enlarge into dark staining tyloses. Both endoderm and pericycle are inconspicuous. The vascular cylinder or stele in young stems consists of a ring of vascular bundles interspaced with medullary rays of parenchyma cells. Seasonal activity of the cambium replaces the isolated vascular bundles with well-defined annual rings of secondary phloem and xylem. Xylem is endarch with protoxylem found towards center of the stem and younger metaxylem towards the periphery of the stem. Protoxylem consists of annular and spiral tracheids with only tracheids found in metaxylem. True xylem vessels are lacking. Because of the greater production of xylem, the vascular cylinder is dominated by radially arranged rays of secondary xylem interspaced with medullary rays of parenchyma cells. Conspicuous resin ducts are present throughout the xylem. Phloem is endarch but annual growth the of stem makes it difficult to distinguish between older protophloem to the periphery and younger metapholem towards center of the stem. Phloem lacks companion cells, consisting entirely of sieve tubes and phloem parenchyma. Medullary rays in the secondary phloem include protein rich albuminous cells. A well-defined pith of parenchyma cells is interrupted by a few large resin ducts.

An image of some cells. An image of some cells.

Blood cells: platelets, white blood cells and red blood cells

Blood cells: platelets, white blood cells and red blood cells

Background from octagonal glass cells

Background from octagonal glass cells on white background is isolated

An image of some cells. An image of some cells.

Many cells. Element of design.

3d rendered anatomy illustration of cells. 3d rendered anatomy illustration of cells

An image of some babies growing in some cells. An image of some babies growing in some cells.

3d neuron cells

3d neuron cells

3d rendered anatomy illustration of cells. 3d rendered anatomy illustration of cells

Red Cells and Bacteria

A 3d image of many red cells and three bacterias on black background. A 3d image of many red cells and three bacterias on black background.

cartoon doodle blood cells

cartoon doodle blood cells

cartoon doodle blood cells

cartoon doodle blood cells

A image of some square cells. A image of some square cells.

cartoon doodle blood cells

cartoon doodle blood cells

Red Cells

An image of some cells. An image of some cells.

Red cells isolated on white background

HeLa Cells

An image of some cells . It would make a interesting medical or background image.

Inside the blood vessel, white blood cells inside

Inside the blood vessel, white blood cells inside

Red blood cells in a peripheral blood smear. Wright x1000.

Red blood cells in a peripheral blood smear. Wright x1000.

An image of some cells. An image of some cells.

White cells- isolated on black

Blood cells

3d rendered anatomy illustration of cells. 3d rendered anatomy illustration of cells

rainbow gradient line drawing cartoon blood cells

rainbow gradient line drawing of a cartoon blood cells

Galvanic cells, batteries are arranged in rows in the package. View from above. Background with batteries for shop, industry, busi

Galvanic cells, batteries are arranged in rows in the package. View from above. Background with batteries for shop, industry, business

Red Blood Cells

Red Blood Cells

Viruses attacking nerve cells

Viruses attacking nerve cells

Red Blood Cells Digital Background

Red Blood Cells Digitally Generated Fractal Background. Red Blood Cells Digitally Generated Fractal Background

line drawing cartoon blood cells

line drawing cartoon blood cells

Fat cells

A image of some square cells. A image of some square cells.

Mesenchymal stem cells

Mesenchymal stem cells

Glucose induces insulin release in beta cells

Glucose induces insulin release in beta cells

Human body cells

Human body cells

3d rendered anatomy illustration of cells. 3d rendered anatomy illustration of cells

Dna double helix and cells on the background

Dna double helix and cells on the background

3d rendered anatomy illustration of cells. 3d rendered anatomy illustration of cells

3d rendered anatomy illustration of cells. 3d rendered anatomy illustration of cells

3d rendered anatomy illustration of cells. 3d rendered anatomy illustration of cells

An image of some cells . It would make a interesting medical or background image. An image of some cells . It would make a interesting medical or background image.

Cells With Infection 4

An image of some cells with an infected cell amongst them. It would make a interesting medical or background image. An image of some cells with an infected cell amongst them. It would make a interesting medical or background image.

An image of some cells. An image of some cells.

Honeycomb cells of cardboard stiffening rib background

Honeycomb cells of cardboard stiffening rib background, close-up view

cold gradient line drawing cartoon blood cells

cold gradient line drawing of a cartoon blood cells

3d rendered anatomy illustration of cells. 3d rendered anatomy illustration of cells

Abstract background, cells perspective, illustration

cartoon doodle blood cells

cartoon doodle blood cells

Grungy Cells Backgrounds

Fuchsia grunge retro surface with hexagon beehive-like cells. Fuchsia grunge retro surface with hexagon beehive-like cells.

warm gradient line drawing cartoon blood cells

warm gradient line drawing of a cartoon blood cells

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