Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
Lily leaf c.s. under microscope
Bacteria pathogen - 3d rendered microbiology image. Illustrate of Lactobacillus Bulgaricus Bacteria, Microbacterium Tuberculosis Bacteria (MTB). Medical research, health-care concept. SEM (TEM) scanning view
Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
Bone marrow plasma cells .Plasma cell neoplasms are diseases in which the body makes too many plasma cells. Plasma cell neoplasms can be benign or malignant. Diagnosed with Immunostain CD138 positive.
Aerial view of loyster farm by Ardara, County Donegal - Ireland.
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.
Spirogyra sp. green algae under microscopic view - Chlorophyta, Green algae
corn stem micrograph with dye
Backgrounds of Bacteria and Mold under the microscope in Lab.
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.
Green algae cells background
stx2a is a subtype of Shiga toxin-producing E. coli (STEC) linked to Hemolytic Uremic Syndrome (HUS), a severe condition impacting kidney function and blood clotting. STEC poses a significant risk of foodborne illness and can spread within communities including family members.
3D cartoon and Gaussian surface models, PDB 6gu2, white background
Liver Fluke Section under light microscope with white background
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.
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.
Cross-section Dicot, Monocot and Root of Plant Stem under the microscope for classroom education.
Bacteria medical illustration - 3d rendered microbiology image. Illustrate of Lactobacillus Bulgaricus Bacteria, Microbacterium Tuberculosis Bacteria (MTB). Medical research, health-care concept. SEM (TEM) scanning view
Microalgae under microscopic view, green algae, cyanobacteria, phytoplankton, diatom, algae mix collage background
Model of DNA Base Pair adenine (A) and thymine (T)\n\nFind more molecules in the Lightbox [url=http://www.istockphoto.com/search/lightbox/7500191][i] 'World of Molecules'[/i][/url], or contact me on customized design/rendering of any molecules in 3D (see some examples below). \n\n[img]http://www.drugmodel.com/360/superglassy900.jpg[/img] \n[img]http://www.drugmodel.com/360/capsule900.jpg[/img] \n[img]http://www.drugmodel.com/360/glassy900.jpg[/img] \n[img]http://www.drugmodel.com/360/heart900.jpg[/img] \n[img]http://www.drugmodel.com/360/viruskiller900.jpg[/img] \n[img]http://www.drugmodel.com/360/mesh900.jpg[/img] \n[img]http://www.drugmodel.com/360/cartoon900.jpg[/img] \n[img]http://www.drugmodel.com/360/photo900.jpg[/img] \n[img]http://www.drugmodel.com/360/ovoid900.jpg[/img]  \n[img]http://www.drugmodel.com/360/swirlcone900.jpg[/img] \n[img]http://www.drugmodel.com/360/super900.jpg[/img] \n[img]http://www.drugmodel.com/360/glowing900.jpg[/img]
Organic Carnauba Wax in Chemical Watch Glass with molecular structure place next to beaker and \nPlatycerium stemaria fern. Chemical ingredient used in cosmetic industry.
Photomicrograph of the ciliate Blepharisma americanum in various stages of development. Typical faint pink color. Each individual is only one cell. Live specimen. Wet mount, 10X objective, transmitted brightfield illumination.
The glucagon like peptide-1 receptor (GLPr) is a G proteincoupled receptor (GPCR) that mediates the action of GLP-1, a peptide hormone. The activated receptor  has a strong effect  on the management of type 2 diabetes mellitus and obesity, including glucose homeostasis and regulation of gastric motility and food intake.
Spirogyra algae (filamentous green algae) under the microscope - optical microscope x400 magnification
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.
Algaes under microscopic view
Black and white image of a long type of mitochondria.\nCan be used to cover biology booklets and presentations.
Characteristics of fungi living in wood as a group, are polyphyletic under the microscope for education.
Pattern Design on Banknote
Free Images: "bestof:Brady's-reagent-mechanism.png Organic reactions Reaction mechanisms 2 4-dinitrophenylhydrazine"
CBSReductionMechanism.svg
Alcohols - 7.svg
Alcohols - 8 (mesylation-halogenation).svg
HOBT mechanism is.svg
Grignard reaction mechanism.svg
ML reaction title.svg
E1cb-mechanism.svg
E2-mechanism.svg
E1-mechanism.svg
Allylic SN1 rearrangement.svg
Allylic SN2 rearrangement.svg
E1cB.svg
Alcohols - 9 (Ph3PBr2).svg
Vicarious nucleophilic substitution.svg
Ether-autoxidation.svg
Mesitoic acid AAC1 reaction.svg
Ninhydrin reaction.svg
Epoxidation Mimoun Mechanism.svg
Nozaki-Hiyama-Kishi.svg
Acidic-ether-synthesis.svg
Gustavson-Reaktion V1-Seite001.svg
Eglinton reaction Ü3-Seite001.svg
Teprineol from isoprene and methyl acrylate.svg
Nozaki-Hiyama-Kishi-Nickel.svg
Dimethylphenylendiamine Oxidation.svg
Mechanism nucleophilic aromatic substitution.svg
Gomberg-Bachmann-Reaktion Ü2-Seite001.svg
Gomberg Bachmann reaction mechn-Seite001.svg
Freund-Reaktion Ü1-Seite001.svg
Gustavson Reaktion mechanism V1-Seite001.svg
Freund-Reaktion mechanismV3-Seite001.svg
Haller-Bauer reaction Ü1-Seite001.svg
Eglinton reaction mechanism V6-Seite001.svg
Pauly Reaktionsgleichung.svg
Haller-Bauer reaction mechanism V2-Seite001.svg
35dinitrosalicylic acid reduction.svg
Mechanism IBX-Oxidation.svg
Propylene and potassium permanganate.svg
Weiss reaction with cyclic dicarbonyl compound 3-Seite001.svg
Weiss reaction, Aldol addition-Seite001.svg
Amide hydrolysis.svg
Gomberg Bachmann reaction mechn-Seite002.svg
Weiss reaction mechanism, Michael addition-Seite001.svg
Transaminierung.svg
Barium hydroxide-catalyzed 2-carboxy-1,3-dihydroxynaphthalene preparation.svg
Oxymercuration Stepwise.svg
Haller-Bauer reaction Ü2.svg
Murexide reaction.svg
Emulsion polymerization mechanisms-fr.svg
Haller-Bauer reaction Ü2-Seite001.svg
Lipid peroxidation-es.svg
Reaction of Propan-1-ol and Copper(II) oxide to Propionaldehyde.svg
Reaction of Propan-1-ol and Copper(II) oxide to Propionaldehyde 2.svg
Transamination mechanism (zh-cn).svg
Lipid peroxidation.svg
Lipid peroxidation (zh-cn).svg
Lipid peroxidation-detail.svg
P450cycle.svg
RuBisCO reaction.svg
LawessonReagentMechanism.svg
Hexafluoraceton + aniline is.svg
Acilare amine cu acid organic.svg
NgroupP11.svg
Takai1.svg
Chromotropsäure-Reaktion.svg
Totarol scheme 1.svg
Totarol scheme 3.svg
Catecol-Quinona.svg
Wenker Synthesis.svg
Wessely oxidation.svg
Bedoukian reaction.svg
Totarol scheme 5.svg
Aldol control 1.svg
Weiss 1,2Aldol V.2.svg
RCM.svg
Fries rearrangement.svg
ReformatskyReactionMechanism.svg
EnamineSynthesisMechanism.svg
SaegusaOxidationMechanism.svg
Madelung synthesis mechanism.svg
Martinet synthesis mechanism.svg
Knoevenagel reaction mechanism 1.svg
Knoevenagel reaction mechanism 2.svg
Knoevenagel reaction mechanism 3.svg
Biginelli reaction mechanism.svg
Lactase2.svg
Cycloeliminierung V.1.svg
Meyer-schuster-rearrangement.svg
Alkynone Syntheses.svg
Homolysis (Chemistry) V.1.svg
Krapcho reaction.svg
Zimmerman-Traxler model scheme.svg
Corey-Winter-Mechanism V.1.svg
Darzens-Glycidester-Kondensation 2 g.svg
Diazotierung 2g.svg
Diazotierung 2a.svg
Dess-Martin-Oxidation 2.svg
IBX-Oxidation 2.svg
Dieckmann-Kondensation 2a.svg
Hydroformylation Mechanism V.1.svg
Terms of Use   Search of the Day