Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
Inside protein molecule
Antimicrobial susceptibility testing in petri dish. Microbiologist check Antibiotic resistance of bacteria
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.
human Miliary tuberculosis biopsy slide under microscope zoom in different areas
3D cartoon and Gaussian surface models, PDB 1j7n, chain id color scheme, 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.
After dopamine binding, the dopamine receptor changes his shape and binds the inactive G protein.The G protein expels its GDP molecule replacing it by GTP. and falls into two pieces. The Galpha subunit binds to and activates the enzyme adenylyl cyclase, which produces then cyclic AMP spreading a signal through the cell.
Particles, medical concept
Blue colored stem cells of a lentil plant under the microscope.
Slice of natural crystal for patterns and textures use with high resolution.
Green algae cells background
plant Stem-Collenchyma C.S. under light mircoscope with white background
3D cartoon and Gaussian surface models, PDB 6gu2, 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.
Algae, a unicellular organism
This computer-generated image vividly illustrates the invasive Group A Streptococcal bacteria, as they would appear under a microscope. This visual representation helps to understand the microscopic world of Group A Streptococcus and its potential to cause serious diseases.
brown fat cell also called brown adipose tissue side to side with white fat cell 3d rendering
DNA A-T Pair
Proteasomes are a large molecular machine that degrade unneeded or damaged proteins that have been tagged with polyubiquitin.
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.
3D cartoon and Gaussian surface models, PDB 6rwb, white background
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.
Microalgae under microscopic view, green algae, cyanobacteria, phytoplankton, diatom, algae mix collage background
plant rape flower cross section under light mircoscope with white background
Gram positive cocci finding with microscope in lab.
Epithelial Cells in urine sediment.
Photomicrograph of newly hatched freshwater leech. Note multiple eyes at head and second attachment sucker at tail. Body length approx. 3 mm. Live specimen. Wet mount, 5X objective, transmitted brightfield illumination.
Free Images: "bestof:PDB 1wwi EBI.jpg All alpha proteins Histone-fold Histone-fold Bacterial histone-fold protein Hypothetical protein TTHA1479 EBI License 1wwi November 16 2008"
2ph1 pdb gallery nucleotide binding-protein-2 (MinD homolog).svg
Thyroid hormone synthesis.svg
Epicocconone protein.svg
Radotinib.svg
AminoAcid length distribution 2010.svg
Glicoprotein.svg
ProteinQS.svg
Intermediate filament.svg
Ribosome mRNA translation tr.svg
Main protein structure levels pl.svg
PhOH-CHCl3 extraction.svg
Protein primary structure zh (zh-tw).svg
Scheme facilitated diffusion in cell membrane-ca.svg
Molbio-Header.svg
Insulin glucose metabolism ZP-ca.svg
Thyroid hormone synthesis-it.svg
Portret van Jan van Huysum Rijksmuseum SK-A-5008.jpeg.jpg
Notable mutations.svg
PDB 1wwi EBI.jpg
PDB 1wws EBI.jpg
PDB 1r4v EBI.jpg
PDB 1q9c EBI.jpg
PDB 1oft EBI.jpg
PDB 1ofu EBI.jpg
PDB 1tzy EBI.jpg
PDB 2aro EBI.jpg
PDB 1hq3 EBI.jpg
PDB 1eqz EBI.jpg
PDB 2hio EBI.jpg
PDB 1kx5 EBI.jpg
PDB 1s32 EBI.jpg
PDB 1kx3 EBI.jpg
PDB 1m19 EBI.jpg
PDB 1p3i EBI.jpg
PDB 1m18 EBI.jpg
PDB 1p3l EBI.jpg
PDB 1p3p EBI.jpg
PDB 1p3g EBI.jpg
PDB 1p34 EBI.jpg
PDB 1p3o EBI.jpg
PDB 1m1a EBI.jpg
PDB 1kx4 EBI.jpg
PDB 2nzd EBI.jpg
PDB 1p3k EBI.jpg
PDB 1p3m EBI.jpg
PDB 1aoi EBI.jpg
PDB 1p3a EBI.jpg
PDB 1p3f EBI.jpg
PDB 1p3b EBI.jpg
PDB 1f66 EBI.jpg
PDB 1id3 EBI.jpg
PDB 2cv5 EBI.jpg
PDB 1zla EBI.jpg
PDB 2f8n EBI.jpg
PDB 2fj7 EBI.jpg
PDB 1u35 EBI.jpg
PDB 2hue EBI.jpg
PDB 2io5 EBI.jpg
PDB 1b67 EBI.jpg
PDB 1hta EBI.jpg
PDB 1a7w EBI.jpg
PDB 1b6w EBI.jpg
PDB 1bfm EBI.jpg
PDB 1f1e EBI.jpg
PDB 1ku5 EBI.jpg
PDB 1bh9 EBI.jpg
PDB 1bh8 EBI.jpg
PDB 2byk EBI.jpg
PDB 2bym EBI.jpg
PDB 1taf EBI.jpg
PDB 1jfi EBI.jpg
PDB 1n1j EBI.jpg
PDB 1h3o EBI.jpg
PDB 1xn8 EBI.jpg
PDB 1sed EBI.jpg
PDB 1vk5 EBI.jpg
PDB 2q3t EBI.jpg
PDB 1nxh EBI.jpg
PDB 1td6 EBI.jpg
PDB 1tm9 EBI.jpg
PDB 1skv EBI.jpg
PDB 1v8d EBI.jpg
PDB 1pu1 EBI.jpg
PDB 2ffm EBI.jpg
PDB 1pqx EBI.jpg
PDB 1qw2 EBI.jpg
PDB 1iqo EBI.jpg
PDB 1iqs EBI.jpg
PDB 1pv5 EBI.jpg
PDB 1nei EBI.jpg
PDB 1n6z EBI.jpg
PDB 2pk8 EBI.jpg
PDB 1ryl EBI.jpg
PDB 1vjl EBI.jpg
PDB 1mw5 EBI.jpg
PDB 1o22 EBI.jpg
PDB 1uc2 EBI.jpg
PDB 1tu9 EBI.jpg
PDB 1vjx EBI.jpg
PDB 2fzf EBI.jpg
Terms of Use   Search of the Day