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Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
Diffuse large B-cell lymphoma, or DLBCL, is a cancer that starts in white blood cells called lymphocytes.
Backgrounds of Bacteria and Mold under the microscope in Lab.
Molecular Model of Human Insulin with disulfide bonds shown.
3D cartoon and molecular surface models, chain id color scheme, putative membrane shown, pdb 1l7v, white background
Metastatic plasmacytoma, metastatic undifferentiated sarcoma. Microscopically show cellular material of mostly plasmacytiod cells. atypical mitoses are present. plasma cell tumor.
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.
Amitriptyline is used as an antidepressant and antimigraine drug. It blocks sodium channels on neuronal membrans. Sodium channels generate and propagate action potentials in neurons and muscle. Source: PDB entry 6AGF
plant Pine Stem C.S. under light mircoscope with white background
Lily leaf c.s. under microscope
Sewing thread detail, copy space, full frame - Stock photo
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.
Purple Wave Bar Pattern Design on Banknote
Cartilage cells under the microscope view.
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.
Microscopic preparation, tissue plant
Liver Fluke Section under light microscope with white background
The amyloid beta peptide (light blue) is a component of the amyloid precursor protein, which is bound to a cell membrane. The gamma secretase enzyme cuts the free form, that aggregates to amyloid plaques. Source: PDB entries 2beg, 1mwp
Blastomycosis is a fungal infection caused by inhaling Blastomyces dermatitidis spores. If it involves only the lungs, it is called pulmonary blastomycosis. Only about half of people with the disease have symptoms, which can include fever, cough, night sweats, muscle pains, weight loss, chest pain, and feeling tired.
The study of plant tissues under the microscope in the laboratory.
Molecular Model of Human Insulin with disulfide bonds shown.
PAPS Smear study of a young women under microscopy showing Atrophic changes in uterus which is unusual at young age.
Close-up of a purple Tie Dye pattern on a textile. Can be used as a background. Tie Dye pattern was created by the photographer.
Drying cotton fabrics in sunlight at Inle lake in Shan State,Myanmar.
Insect bitten leaf - negative image technique.
Secreted by Staphylococcus aureus, this toxin binds with the outer membrane, with subsequent oligomerization of the toxin monomers to form water-filled channels. These are responsible for osmotic phenomena, cell depolarization and loss of vital molecules (v.gr. ATP), leading to cell death. 3D cartoon model in two purpendicular projections, chain id color scheme, based on PDB 3anz, white background.
Pattern Design on Banknote
Catenin beta-1. Mutations and overexpression of this protein are associated with many cancers, including hepatocellular carcinoma, colorectal carcinoma, lung cancer and malignant breast tumors.
Clear cell hepatocellular carcinoma. Clear Cell Carcinoma of the Liver.  The clear cell variant of hepatocellular carcinoma is a rare entity, occurring at a frequency of less than 10% of hepatocellular carcinoma, with a female prevalence and usually associated with hepatitis C and cirrhosis. H&E stain
Free Images: "bestof:Silk fibroin primary structure.svg Primärstruktur von Fibroin Seidenprotein Primary structure of fibroin silk protein Own 2010-03-15 Sponk <span class"
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