Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
A ball and stick model of Human Insulin. Isolated on black.
orange: RNA primer; red: RNA template; light blue: proofreading riboexonuclease; mid blue: helicase; dark blue: RNA directed RNA polymerase; violet: non structural proteins (NSPs).
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.
Lily leaf c.s. under microscope
Inside protein molecule
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.
Biological protein and molecule, 3d rendering. 3D illustration.
DNA close-up, DNA Molecule Model, DNA Strands, DNA animation
Cells in the body examined by endoscope
Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
Covid-19 Coronavirus Variants Omicron Delta Gamma Beta Alpha Pandemic Virus Disease Mutation
3D cartoon and Gaussian surface models, PDB 6gu2, white background
DNA A-T Pair
Cosmetic serum Oil drop on Saggy skin cell, Skin Repair, moisturizer, collagen serum, advertising background ready to use, 3D rendering
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.
Shiny artificial molecular structure in many colors. Horizontal composition, isolated on black background.
The cytokin interleukin 11 (IL-11) plays an important role in autoimmune diseases, fibrotic complications, and solid cancers. Blocking IL-11 can extend lifespan and improve health.
nanotechnology and abstract graphene structures
3D cartoon and Gaussian surface models, chain id color scheme, PDB 7t3a, 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.
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
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.
Ball and stick 3D render of the caffeine molecular structure.
H2 Hydrogen Molecule Fuel Cell Element Vehicle Biodegradable Ethical Renewable Energy
GABA B receptors  are G protein-coupled receptors, also called metabotropic receptors.  Binding of  an agonist (here baclofen, red) leads to a G-protein coupled C-AMP signaling pathway. Source: PDB entries 7eb2, 6r3q,.
Different germs in the human intestines called microbiome,Bacteria Lactobacillus in human intestine,Beneficial healthy intestinal bacterium microflora,Gut bacteria
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.
plant Soya Stem C.S. under light mircoscope with white background
Free Images: "bestof:PDB 1ild EBI.jpg Membrane and cell surface proteins and peptides Transmembrane beta-barrels Outer membrane phospholipase A OMPLA Outer membrane phospholipase A"
Hepatitis B virus v2.svg
Bacteria.svg
TOM complex.svg
Diagram human cell nucleus numbered version.svg
Lipid raft organisation scheme.svg
Lipid bilayer fusion.svg
Cell membrane detailed diagram blank.svg
Cell membrane detailed diagram en.svg
Exocytosis types.svg
Endocytosis types.svg
Endocytosis types-fr.svg
CD8 receptor.svg
Insulin glucose metabolism ZP (it).svg
Insulin glucose metabolism ZP-he.svg
Endocytoza typy.svg
Insulin glucose metabolism ZP (ru).svg
Adherens Junctions structural proteins-LangNeutral.svg
Human genome by functions.svg
Insulin glucose metabolism ZP.svg
Adherens Junctions structural proteins.svg
Insulin glucose metabolism ZP-ca.svg
Cellular tight junction keys.svg
Cell membrane detailed diagram es.svg
Cell membrane detailed diagram fr.svg
Cell membrane detailed diagram pt.svg
Cell membrane detailed diagram zh.svg
Cell membrane detailed diagram id.svg
Cell membrane detailed diagram et.svg
Cell membrane detailed diagram ua.svg
Cell membrane detailed diagram de.svg
Cell membrane detailed diagram pl.svg
Cell membrane detailed diagram lv.svg
Cell membrane detailed diagram nl.svg
Cell membrane detailed diagram ca.svg
Black lipid membrane.svg
Scheme facilitated diffusion in cell membrane-zh (zh-tw).svg
Scheme facilitated diffusion in cell membrane-en.svg
Outer hair cell and Deiter's cell.svg
Scheme simple diffusion in cell membrane-es.svg
Scheme facilitated diffusion in cell membrane-zh.svg
Scheme simple diffusion in cell membrane-zh (zh-tw).svg
Scheme facilitated diffusion in cell membrane-es.svg
Scheme facilitated diffusion in cell membrane-ca.svg
Scheme simple diffusion in cell membrane-en.svg
Scheme facilitated diffusion in cell membrane-eo.svg
Scheme simple diffusion in cell membrane-pl.svg
Scheme simple diffusion in cell membrane-ca.svg
Scheme simple diffusion in cell membrane-de.svg
Scheme simple diffusion in cell membrane-zh (zh-cn).svg
Scheme simple diffusion in cell membrane-de 02.svg
Scheme facilitated diffusion in cell membrane-fr.svg
Scheme simple diffusion in cell membrane-fr.svg
biology-cell-diagram-science-41522.svg
bacterium-nucleoid-cytoplasm-cell-307660.svg
PEM fuelcell.svg
Bialka blonowe-grafik.svg
Trachelomonas lorica.svg
Euglenid pellicula scheme.svg
PEM fuel cell.svg
Hodgkin-huxley-circuit.svg
Electron transport chain.svg
drawing-nerve-cell-neurone-732830.png
drawing-nerve-cell-neurone-730778.jpg
drawing-nerve-cell-neurone-730755.png
Supported bilayer.svg
Prokaryote cell diagram international.svg
Fagocytoza.svg
Semnalizare engl.svg
Frap diagram.svg
Bilayer hydration profile.svg
Lipid vesicles.svg
FtsZ Filaments.svg
Animal Cell.svg
Plant cell wall nl.svg
5HT1A-schema.svg
Scheme sodium-potassium pump-ja.svg
Osmotic pressure on blood cells diagram.svg
ETC electron transport chain.svg
Desmosome cell junction pl.svg
Osmotic pressure on blood cells diagram-it.svg
Lipid unsaturation effect.svg
Lipid vesicle vs soap bubble.svg
Scheme sodium-potassium pump-it.svg
Osmotic pressure on blood cells diagram pl.svg
Osmotic pressure on blood cells diagram-es.svg
Osmotic pressure on blood cells diagram-ru.svg
Osmotic pressure on blood cells diagram-lv.svg
Scheme sodium-potassium pump-en-2.svg
Osmotic pressure on blood cells diagram (zh-cn).svg
Scheme sodium-potassium pump-zh.svg
Scheme sodium-potassium pump-zh (zh-tw).svg
Plant cell wall diagram-en.svg
Scheme sodium-potassium pump-en.svg
Scheme sodium-potassium pump-pl.svg
Scheme sodium-potassium pump-bs.svg
Scheme sodium-potassium pump-he.svg
Scheme secundary active transport-en.svg
Pore schematic.svg
Lipid unsaturation effect pt.svg
Scheme secundary active transport-heb.svg
Terms of Use   Search of the Day