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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
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.
DNA close-up, DNA Molecule Model, DNA Strands, DNA animation
Shiny artificial molecular structure in many colors. Horizontal composition, isolated on black background.
Biological protein and molecule, 3d rendering. 3D illustration.
Focal nodular hyperplasia (FNH) is a benign liver lesion that is composed of a proliferation of hyperplastic hepatocytes surrounding a central stellate scar. Typically, FNH is a solitary lesion that is more commonly seen in women.
Host cells with spores (mold) are inside wood under the microscope for education.
Cells in the body examined by endoscope
orange: RNA primer; red: RNA template; light blue: proofreading riboexonuclease; mid blue: helicase; dark blue: RNA directed RNA polymerase; violet: non structural proteins (NSPs).
DNA A-T Pair
B-chain pentamer and A-chain subunit (green), 3D cartoon and Gaussian surface model, white background
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.
Acetylcholine receptors in the lipid layer of cell membrane.
Particles, medical concept
Coxsackie virus internal structure, 3d illustration set isolated on white
Modern abstract painting. Colorful flowing art painting. Geometric background.
Immunotherapy of Alzheimer's disease: Monoclonal antibody (light blue) bound to an amyloid beta peptide (orange),  that is aggregated to amyloid beta fibrils, which build up amyloid plaques.
corn stem micrograph with dye
3D cartoon and Gaussian surface models, chain id color scheme, PDB 2y73, 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.
Science background with molecule or atom
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.
Leiden leaf c.s. under microscope
Stem of Nerium indicum T.S. under light mircoscope with white background
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
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
3D cartoon and Gaussian surface models, PDB 5fwk, white background
Different germs in the human intestines called microbiome,Bacteria Lactobacillus in human intestine,Beneficial healthy intestinal bacterium microflora,Gut bacteria
Free Images: "bestof:PDB 1qlb EBI.jpg Membrane and cell surface proteins and peptides Heme-binding four-helical bundle Fumarate reductase respiratory complex transmembrane subunits"
Hepatitis B virus v2.svg
Lipid raft organisation scheme.svg
Cellular tight junction keys.svg
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