Prokaryotic Collection

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)

Pyrococcus furiosus archaea artwork
Pyroccocus furiosus archaea, artwork. Archaea are single-celled organisms that are similar to bacteria but have been found to have higher organism characteristics

Bacteria shapes, artwork F007 / 9891
Computer artwork showing the three basic forms of bacteria: in the front (red) spirochetes), in the middle (green) bacilli and in the background (blue) cocci

70S ribosome, molecular model F006 / 9651
70S ribosome, molecular model. Ribosomes are composed of protein and RNA (ribonucleic acid). In bacteria each ribosome consists of a small (30S) subunit and a large (50S) subunit

70S ribosome, molecular model F006 / 9638
70S ribosome. Molecular model of a 70S ribosome complex containing a Shine-Dalgarno helix, the point of mRNA (messenger ribonucleic acid) binding

Bacterial protease molecule F006 / 9340
Bacterial protease molecule. Computer model of a molecule of HsIUV protease complexed with its chaperone protein from a bacterium. Proteases are enzymes that break down proteins

HU DNA binding protein molecule
HU DNA binding protein. Molecular model of the HU protein (orange and blue) bound to a molecule of DNA (deoxyribonucleic acid)

Bacterial protease molecule. Computer model of a molecule of HsIUV protease complexed with its chaperone protein from a bacterium. Proteases are enzymes that break down proteins

Bacterial ribosome and protein synthesis. Molecular model showing a bacterial ribosome reading an mRNA (messenger ribonucleic acid) strand (blue) and synthesising a protein

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)

Bacterial alcohol dehydrogenase molecule C015 / 7146
Bacterial alcohol dehydrogenase. Molecular model of an NADP-dependent alcohol dehydrogenase enzyme from the bacterium Thermoanaerobacter brockii

DNA-bending protein, molecular model C014 / 0395
DNA-bending protein. Molecular model of the Hbb protein (yellow and orange) bound to DNA (deoxyribonucleic acid, blue). This protein is found in the bacterium Borrelia burgdorferiis

E. coli DNA mismatch repair complex. Computer model showing the structure of a MutS (Mutator S) protein from Escherichia coli (E)

Ribosomal RNA-binding protein molecule. Computer model showing the structure of a ribosomal protein L9 (RPL9) molecule from Bacillus stearothermophilus bacteria

Stromatolite C016 / 5593
Stromatolite. Section through a stromatolite, the fossilised remains of a colony of cyanobacteria. This specimen originates from the Precambrian rocks of Eastern Siberia 2, 500-2

DNA polymerase III subunit molecule
DNA polymerase III beta subunits, molecular model. DNA polymerases are enzymes that synthesise new strands of DNA from a complementary template strand during DNA replication

DNA polymerase III subunit molecule C013 / 9008
DNA polymerase III beta subunits, molecular model. DNA polymerases are enzymes that synthesise new strands of DNA from a complementary template strand during DNA replication

Archaea (Methanosarcina sp. ) SEM C013 / 7189
Archaea (Methanosarcina sp.) scanning electron micrograph (SEM). These primitive archaebacteria have unusual cell walls and membranes and are methane producers

Archaea (Methanosarcina sp. ) SEM C013 / 7190
Archaea (Methanosarcina sp.) scanning electron micrograph (SEM). These primitive archaebacteria have unusual cell walls and membranes and are methane producers

Bacillus sp. bacteria
Bacteria are the most diverse and ubiquitous soil organisms present on Earth

Lobaria pulmonaria, lichen
A cut-out of a lichen specimen held in the crypt herbarium at the Natural History Museum, London

Cetraria islandica, lichen
A cut-out of a branching lichen specimen held in the crypt herbarium at the Natural History Museum, London

Lichen
This is an example of one of Sri Lankas very rich diversity of lichens

Cladonia sulphuratum, lichen
Cut-outs of lichen specimens held in the crypt herbarium at the Natural History Museum, London

Sticta sp. lichen
A cut-out of a lichen specimen held in the crypt herbarium at the Natural History Museum, London

Nephroma sp. lichen
A cut-out of a lichen specimen held in the crypt herbarium at the Natural History Museum, London

Nostoc sp
A cyanobacterium. Members of this genus occur frequently in lichens, especially those in wet habitats

Stromatolite
Section through a fossil stromatolite (fossilised remains of a colony of cyanobacteria cushions). Originating from the Precambrian rocks of Eastern Siberia 2, 500 - 2, 000 million years old

Gram-negative bacterium, artwork
Gram-negative bacterium. Artwork of a prokaryotic, Gram-negative rod-shaped bacterium with a single polar flagellum (spiral structure, upper left)

Bacterial endospore formation, diagram. The initial stage is at upper left, following the arrow to a ninth stage at lower right

Bacterial DNA, conceptual artwork
Bacterial DNA, conceptual computer artwork. Bacterial cells containing two molecules of DNA (deoxyribonucleic acid, represented by letters)

Bacteria shapes, artwork
Bacterial shapes. Computer artwork showing the appearance of various different types of bacteria

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 replication, artwork
Bacterial replication. Computer artwork showing a single bacterium dividing to form two identical daughter cells. This process is a form of asexual reproduction and is known as binary fission

Bacterial conjugation, artwork
Bacterial conjugation, computer artwork. Conjugation is the process by which genetic material is transferred from one bacterium to another

Prokaryotic mechanosensitive ion channel molecule. Computer model showing two views of the molecular structure of a Mechanosensitive Channel of Large Conductance (MscL)

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"Exploring the Intricate World Cells: A Fusion of Science and Art" Step into a mesmerizing realm where science meets art, as we delve into the captivating world cells. These tiny organisms, lacking a nucleus and other membrane-bound organelles, may seem simple at first glance, but their complexity is truly awe-inspiring. Let us begin our journey with Pyrococcus furiosus archaea artwork. This stunning portrayal captures the essence of these extremophiles that thrive in scorching temperatures. Their ability to survive in such harsh conditions showcases the resilience and adaptability of prokaryotes. Moving on to bacteria shapes depicted in F007 / 9891 artwork, we witness an array of diverse forms - from spirals to rods and spheres. Each shape represents a unique bacterial species, highlighting the remarkable diversity within this group. Zooming in further, we encounter molecular models showcasing the intricate structure of a 70S ribosome (F006 / 9651 & F006 / 9638). These essential cellular components play a crucial role in protein synthesis, underscoring their significance in prokaryotic biology. Next up is an artistic representation of a bacterial protease molecule (F006 / 9340). This enzyme's function lies in breaking down proteins within bacteria for various cellular processes. Its elegant structure reminds us that even at the microscopic level, beauty can be found. Shifting gears slightly, we explore DNA-bending protein molecular models that contribute to gene regulation and packaging (repeated twice). These proteins sculpt DNA strands into compact structures while ensuring proper gene expression – an exquisite dance between molecules. Lastly, Chlamydia infection artworks (C016 / 8952 & C016 / 8954) shed light on one aspect of prokaryotes' impact on human health. The illustrations depict how this sexually transmitted bacterium invades host cells, emphasizing the importance of understanding and combating such infections.