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A ball and stick model of Human Insulin. Isolated on black.
Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
3D cartoon and molecular surface models, chain id color scheme, putative membrane shown, pdb 1l7v, white background
Phospholipid bilayer membrane structures that make up living cells and their contents. This is an image of membrane proteins in the membrane.\nThis image, which looks like a plastic model, evokes biology and biochemistry. It can be used as a cover for magazines, textbooks and presentation materials.\nThis image was not created by AI.
Inside protein molecule
Proteasomes are molecular machines for breaking down proteins called proteolysis, only target proteins that have been marked for destruction called ubiquitin to the target protein, 3d rendering
Cell Membrane Phospholipid Structure,Phospholipid bilayer of the cell membrane,Lipid bilayer
Cosmetic serum Oil drop on Saggy skin cell, Skin Repair, moisturizer, collagen serum, advertising background ready to use, 3D rendering
Acetylcholine receptors in the lipid layer of cell membrane.
Endosomes - 3d rendered image of Endosomes are membrane-bound organelles. They are parts of endocytic membrane transport pathway.  Endomembrane system in cells. Bilayer Lipid Membrane. Abstract medical illustration. Microscopic view. Microbiologic research concept.
orange: RNA primer; red: RNA template; light blue: proofreading riboexonuclease; mid blue: helicase; dark blue: RNA directed RNA polymerase; violet: non structural proteins (NSPs).
Shiny artificial molecular structure in many colors. Horizontal composition, isolated on black background.
B-chain pentamer and A-chain subunit (green), 3D cartoon and Gaussian surface model, white background
DNA A-T Pair
Glucose-6-phosphate dehydrogenase (G6PD) protein. Enzyme of the pentose phosphate pathway that generates co-enzyme NADPH. 3D illustration.
Cells in the body examined by endoscope
Ball and stick 3D render of the caffeine molecular structure.
Endosomes - 3d rendered image of Endosomes are membrane-bound organelles. They are parts of endocytic membrane transport pathway.  Endomembrane system in cells. Bilayer Lipid Membrane. Abstract medical illustration. Microscopic view. Microbiologic research concept.
The NEK-7 independent NLRP3 inflammasome in it's hexameric conformation with ADP (red) bound. Inflammasomes are a promising target for the treatment of autoimmune diseases. PDB entry: 7zgu.
Covid-19 Coronavirus Variants Omicron Delta Gamma Beta Alpha Pandemic Virus Disease Mutation
Spike glycoprotein homotrimer, a main target for neutralization antibody, to bind its receptor, ACE2, and mediate membrane fusion and virus entry. 3D cartoon and Gaussian surface models, white background.
Photomicrograph of filamentous blue-green algae, Oscillatoria species. Each band along the stand is one cell. This filament is very short probably having recently parted from a longer one. Filaments are typically many times longer. This algae is mobile, it moves and twists through the water. San Francisco Bay, California, USA. Live specimen. Wet mount, 40X objective, transmitted brightfield illumination. Note - motion blur of live specimen, very shallow depth of field, chromatic aberration and uneven focus are inherent in light microscopy.
Biological protein and molecule, 3d rendering. 3D illustration.
Close-up of glass marbles flying into air against coloured background.
Science background with molecule or atom
Bacteria pathogen - 3d rendered microbiology image. Illustrate of Lactobacillus Bulgaricus Bacteria, Microbacterium Tuberculosis Bacteria (MTB). Medical research, health-care concept. SEM (TEM) scanning view
From left to right: the NMDA and  AMPA receptors transport calcium cations into neurons after being activated by the neurotransmitter glutamate and  the GABA receptor (right) transport chloride anions after the activation by gamma aminobutyrate. PDB entries: 6wht,  3kg2, 6d6u
H2 Hydrogen Molecule Fuel Cell Element Vehicle Biodegradable Ethical Renewable Energy
3D cartoon and Gaussian surface models, PDB 5fwk, white background
Close-up shooting of a green agate stone mineral surface isolated on white background. Its a macro shot shows nature beautiful details with back lit. Agate is a kind of natural gemstone. Abstract pattern. Good for Wallpaper texture background. Turquoise, blue
Free Images: "bestof:PDB 3prn EBI.jpg Membrane and cell surface proteins and peptides Transmembrane beta-barrels Porins Porin Porin EBI License 3prn November 16 2008 Porin Files"
Adherens Junctions structural proteins-LangNeutral.svg
Porin.seutukunta.sijainti.2008.svg
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Hodgkin-huxley-circuit.svg
Lipid raft organisation scheme.svg
Insulin glucose metabolism ZP (ru).svg
Scheme facilitated diffusion in cell membrane-ca.svg
Scheme simple diffusion in cell membrane-pl.svg
Adherens Junctions structural proteins.svg
Cellular tight junction keys.svg
Insulin glucose metabolism ZP-ca.svg
2ph1 pdb gallery nucleotide binding-protein-2 (MinD homolog).svg
Plant cell structure svg 2.svg
Average prokaryote cell- nl.svg
Scheme sodium-potassium pump-pl.svg
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San francisco districts.svg
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Portret van Jan van Huysum Rijksmuseum SK-A-5008.jpeg.jpg
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