Cell Wall Collection

Budding yeast cell. Computer artwork of asection through a yeast ( Candida albicans )cell that is reproducing asexually. A daughtercell (top left) is budding from the parent cell

Plant cell
False-colour transmission electron micrograph (TEM) of a cell in the root tip of a maize plant, Zea mays. Plant cells are distinct from animal cells in having an additional external envelope

Diatom, SEM
Diatom. Coloured scanning electron micrograph (SEM) of a Stephanopyxis sp. diatom. Diatoms are single-celled photosynthetic algae, of which there are about 100, 000 species

Diatom, SEM
Diatom. Coloured scanning electron micrograph (SEM) of a Triceratium morlandii diatom. Diatoms are single-celled photosynthetic algae, of which there are about 100, 000 species

Calcareous phytoplankton, SEM
Calcareous phytoplankton. Coloured scanning electron micrograph (SEM) of the external mineralised structures (coccospheres) of small marine algal organisms called coccolithophores

Cell types, artwork
Cell types. Cutaway artwork with a scale bar (upper right, in micrometres) showing the relative sizes of eukaryotic cells (those containing a nucleus) and prokaryotic cells (those lacking a nucleus)

Diatom cell wall, SEM
Diatom cell wall. Coloured scanning electron micrograph (SEM) of the pattern of small holes, called striae, in the cell wall of a diatom alga. This is a Coscinodiscus sp. diatom

Karl Rudolphi, Swedish naturalist. Historical artwork of Karl Asmund Rudolphi (1771-1832). Rudolphi is credited with being the father of helminthology, the study of worms

Yeast cells, TEM
Yeast cells, coloured transmission electron micrograph (TEM). The cell wall is shown in blue, cytoplasm in red, and vacuole in green. Yeast is a single-celled fungus that reproduces asexually

Delamanid tuberculosis drug F007 / 0140
Delamanid tuberculosis (TB) drug, molecular model. Delamanid interferes with the production of mycolic acid, an essential component of the Mycobacterium tuberculosis bacterium cell wall

Delamanid tuberculosis drug F007 / 0139
Delamanid tuberculosis (TB) drug, molecular model. Delamanid interferes with the production of mycolic acid, an essential component of the Mycobacterium tuberculosis bacterium cell wall

Bacterial cell wall enzyme molecule F006 / 9364
Bacterial cell wall enzyme. Molecular model of D-alanyl-D-alanine carboxypeptidase, a transpeptidase. This enzyme cross-links peptidoglycan chains in bacterial cell walls, making them rigid

Algae cell wall, SEM
Algae cell wall. Coloured scanning electron micrograph (SEM) of cellulose microfibrils (strands) in a Chaetomorpha sp. algal cell wall

Tabellaria diatoms, SEM C016 / 9599
Tabellaria diatoms. Coloured scanning electron micrograph (SEM) of a Tabellaria sp. diatom colony. Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species

Tabellaria diatoms, SEM C016 / 9600
Tabellaria diatoms. Coloured scanning electron micrograph (SEM) of a Tabellaria sp. diatom colony. Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species

Tabellaria diatoms, SEM C016 / 9601
Tabellaria diatoms. Coloured scanning electron micrograph (SEM) of a Tabellaria sp. diatom colony. Diatoms are a group of photosynthetic, single-celled algae containing about 10, 000 species

Prokaryote cell, artwork C016 / 6263
Prokaryote cell. Computer artwork showing the internal structure of a typical prokaryotic cell. Prokaryotes are organisms whose cells lack a membrane-bound nucleus (karyon)

Prokaryote and eukaryote cells, artwork C016 / 6259
Prokaryote and eukaryote cells. Computer artwork comparing typical prokaryotic (top) and eukaryotic (bottom) cells. Prokaryotes are organisms whose cells lack a membrane-bound nucleus (karyon)

Plankton cell wall, SEM
Plankton cell wall. Coloured scanning electron micrograph (SEM) of the geometrical plates making up the mineralised cell wall of a planktonic alga (Coronosphaera mediterranea)

Ureter lining, SEM
Ureter lining. Coloured scanning electron micrograph (SEM) of the surface of a squamous epithelial cell from the ureter. Magnification: x6, 500 when printed at 10 centimetres wide

Diagram of cell wall & flagellum of Gram- bacteria
Diagrammatic representation of the cell wall, cell membrane, and a flagellum of a Gram-negative bacterium. Gram-negative bacteria have an outer lipopolysaccharide layer (above, yellow)

Plant cells, artwork
Plant cells, computer artwork

Plant cell, artwork
Plant cell, computer artwork

Gram positive cell wall, artwork
Gram positive cell wall. Artwork showing the structure of a Gram positive bacterial cell wall. It consists of an inner (cytoplasmic) phospholipid membrane (bottom)

Gram negative cell wall, artwork
Gram negative cell wall. Artwork showing the structure of a Gram negative bacterial cell wall. It consists of an inner (cytoplasmic) phospholipid membrane (bottom)

Dendrobium orchid root, light micrograph
Dendrobium orchid root. Light micrograph of a section through an aerial root from a Dendrobium sp. orchid. The outer tissue (velamen radicum, grey) is composed of hexagonal cells

Plant cells, light micrograph. These cells are from a spiderwort (Tradescantia) plant. The rigid shape of a plants cell wall is one of the features that distinguishes it from animal cells

Beech tree leaf, light micrograph
Beech tree leaf. Light micrograph of a section through the leaf of a common beech tree (Fagus sylvatica), showing the midrib

Beech tree leaves, light micrograph
Beech tree leaves. Light micrograph of a section through two leaves from different parts of a common beech tree (Fagus sylvatica)

Yeast cell, artwork
Yeast cell. Computer artwork showing the structure of a yeast cell

Plant cell wall, diagram

Bacterial cell structure, artwork
Bacterial cell structure. Computer artwork showing the cell structure and components (organelles) of a typical rod-shaped bacteria (bacillus). Not all bacteria have a flagellum (long, tail-like)

Bacterial cell wall comparison, artwork
Bacterial cell wall comparison. Computer artwork comparing the structure of the cell wall from a gram-negative bacterium (left) with that of a gram-positive bacterium (right)

Plant cell, SEM
Plant cell. Coloured scanning electron micrograph (SEM) of a section through a plant cell, revealing its internal structure. The cell is encased in a cellulose, hemicellulose and pectin cell wall

Selection of diatoms, SEM
Selection of diatoms, coloured scanning electron micrograph (SEM). Diatoms are single-celled photosynthetic algae, of which there are about 100, 000 species

Coscinodiscus diatom, SEM
Coscinodiscus diatom. Coloured scanning electron micrograph (SEM) of a Coscinodiscus diatom (red). This is a marine diatom

False-colour TEM of root cell division
False-colour transmission electron micrograph of a late stage of cell division in the root tip cell (meristem) of Zea mays, maize

Cellulose microfibrils of a cell wall
Scanning electron micrograph of the surface of a protoplast (cell with wall removed) from a leaf of the tobacco plant Nicotiana tabacum

Moss leaf cells, light micrograph
Moss leaf cells. Light micrograph of cells in a leaf of shining Hookeria moss (Hookeria luscens). Two whole cells (horizontal) are seen at centre, surrounded by parts of other cells

Stomatal complex, TEM
Stomal complex. Coloured transmission electron micrograph (TEM) of a stomatal (pore) complex in the young leaf of the pea plant (Pisum sativum)

Coloured TEM of E. coli bacteria dividing
E. Coli bacteria dividing. Transmission electron micrograph of the division zone between two new Escherichia coli bacteria showing the cells undergoing binary fission

Protoplast showing cellulose microfibrils
Scanning electron micrograph of the surface of a tobacco leaf protoplast, Nicotiana tabacum, showing cellulose microfibrils regrowing over the plasma membrane

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The cell wall, a remarkable structure found in various organisms, plays a crucial role in providing support and protection. From budding yeast cells to calcareous phytoplankton and diatoms, the diversity of cell walls is awe-inspiring. Under the scanning electron microscope (SEM), we can observe the intricate details of these fascinating structures. The budding yeast cell showcases its robust cell wall, which not only maintains its shape but also defends against external threats. Moving on to calcareous phytoplankton, their SEM image reveals an intricately patterned cell wall that helps them thrive in aquatic environments. These delicate organisms rely on their sturdy armor-like walls for buoyancy and protection from predators. Diatoms, another group of microorganisms with stunningly beautiful glass-like shells visible through SEM imaging, exhibit an astonishing array of shapes and patterns. Their intricate designs are not just visually captivating but also serve as effective barriers against environmental stressors. Artwork depicting different types of cells highlights the diverse nature of cell walls across various species. Each artwork represents unique characteristics specific to each organism's needs for survival and adaptation. Zooming in further under SEM magnification, we witness the mesmerizing complexity of diatom cell walls. These microscopic wonders showcase an unparalleled level of precision in their geometric arrangements—a testament to nature's ingenuity at work. Not limited to single-celled organisms alone, plant cells also possess formidable cellulose-based walls that provide structural integrity while allowing flexibility for growth and development. In this series of SEM images capturing diatoms' incredible beauty up close—each frame showcasing distinct shapes—we are reminded once again how vital these structures are for these tiny creatures' existence amidst vast oceans or freshwater bodies worldwide. From simple yet resilient budding yeast cells to elaborate calcareous phytoplankton and breathtakingly intricate diatoms—their varied forms highlight the versatility and importance of cellular architecture known as the cell wall.