Click Here for More Images from iStock- 15% off with coupon 15FREEIMAGES 
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).
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
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.
DNA close-up, DNA Molecule Model, DNA Strands, DNA animation
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.
B-chain pentamer and A-chain subunit (green), 3D cartoon and Gaussian surface model, white background
Cell Membrane Phospholipid Structure,Phospholipid bilayer of the cell membrane,Lipid bilayer
3d rendered Gastric inhibitory polypeptide (GIP, glucose-dependent insulinotropic peptide) endocrine protein hormone, 3D illustration
Covid-19 Coronavirus Variants Omicron Delta Gamma Beta Alpha Pandemic Virus Disease Mutation
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
DNA close-up, DNA Molecule Model, DNA Strands, DNA animation
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.
3D cartoon and Gaussian surface models, chain id color scheme, PDB 3omv, white background
Cells in the body examined by endoscope
Biological protein and molecule, 3d rendering. 3D illustration.
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.
The Raf/MEK/ERK (MAPK) propagates growth signals in the cell. Misregulation can lead to cancer.\nThe red dots on the active EGFR are phosphorylated tyrosines. PDB entries: 1egf, 1nql, 1m17, 2jwa, 3njp, 2gs6, 1gri, 1xd2, 3ksy, 5p21, 6xi7, 6q0j, 2y4i,
Shiny artificial molecular structure in many colors. Horizontal composition, isolated on black background.
Nucleosome structure. Structure of an oligonucleosome, showing the packaging of DNA in chromosomes. 3D illustration.
Digital background depicting innovative technologies in (AI) artificial systems, neural interfaces and internet machine learning technologies
3D cartoon and Gaussian surface models, chain id color scheme, PDB 7t3a, 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.
H2 Hydrogen Molecule Fuel Cell Element Vehicle Biodegradable Ethical Renewable Energy
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.
Different germs in the human intestines called microbiome,Bacteria Lactobacillus in human intestine,Beneficial healthy intestinal bacterium microflora,Gut bacteria
Coxsackie virus internal structure, 3d illustration set isolated on white
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
Free Images: "bestof:PDB 1fbk EBI.jpg Membrane and cell surface proteins and peptides Family A G protein-coupled receptor-like Family A G protein-coupled receptor-like"
CD8 receptor.svg
Insulin glucose metabolism ZP.svg
Insulin glucose metabolism ZP-ca.svg
Protein 7 domen.svg
Semnalizare engl.svg
5HT1A-schema.svg
Taste bud cell types.svg
Fc receptor schematic.svg
Human genome by functions.svg
portugues-sexo_alemão-sex_ingles-sex_africano-seks_russo-секс_albanes-sex_chines-性別_bulgaro-секс_croata-spol_gales-rhyw_coreano-섹스_frances-sexe_japones-セックス_filandes-sukupuolesta_arabe-الجنس_prontos_ai_tens_em_15_linguas_a_p.jpg
portugues-sexo_alemão-sex_ingles-sex_africano-seks_russo-секс_albanes-sex_chines-性別_bulgaro-секс_croata-spol_gales-rhyw_coreano-섹스_frances-sexe_japones-セックス_filandes-sukupuolesta_arabe-الجنس_prontos_ai_tens_em_15_linguas_a_p.jpg
portugues-sexo_alemão-sex_ingles-sex_africano-seks_russo-секс_albanes-sex_chines-性別_bulgaro-секс_croata-spol_gales-rhyw_coreano-섹스_frances-sexe_japones-セックス_filandes-sukupuolesta_arabe-الجنس_prontos_ai_tens_em_15_linguas_a_p.jpg
PDB 1fbk EBI.jpg
PDB 2at9 EBI.jpg
PDB 1r2n EBI.jpg
PDB 1uaz EBI.jpg
PDB 1h2s EBI.jpg
PDB 2f93 EBI.jpg
PDB 1gu8 EBI.jpg
PDB 1jgj EBI.jpg
PDB 1u19 EBI.jpg
PDB 1gzm EBI.jpg
PDB 1hzx EBI.jpg
PDB 2hpy EBI.jpg
PDB 1jfp EBI.jpg
PDB 1bm1 EBI.jpg
PDB 2brd EBI.jpg
PDB 1brd EBI.jpg
PDB 1m0k EBI.jpg
PDB 1m0l EBI.jpg
PDB 1m0m EBI.jpg
PDB 2ntu EBI.jpg
PDB 2ntw EBI.jpg
PDB 1p8h EBI.jpg
PDB 1kgb EBI.jpg
PDB 1f50 EBI.jpg
PDB 1o0a EBI.jpg
PDB 1c8r EBI.jpg
PDB 1f4z EBI.jpg
PDB 1p8u EBI.jpg
PDB 1pxr EBI.jpg
PDB 1kg9 EBI.jpg
PDB 1c3w EBI.jpg
PDB 1py6 EBI.jpg
PDB 1p8i EBI.jpg
PDB 1kg8 EBI.jpg
PDB 1qhj EBI.jpg
PDB 1jv6 EBI.jpg
PDB 1s53 EBI.jpg
PDB 1c8s EBI.jpg
PDB 1pxs EBI.jpg
PDB 1q5j EBI.jpg
PDB 1kme EBI.jpg
PDB 1qkp EBI.jpg
PDB 1q5i EBI.jpg
PDB 1xji EBI.jpg
PDB 1s8j EBI.jpg
PDB 1jv7 EBI.jpg
PDB 1s8l EBI.jpg
PDB 1s51 EBI.jpg
PDB 1s52 EBI.jpg
PDB 1qko EBI.jpg
PDB 1tn0 EBI.jpg
PDB 1s54 EBI.jpg
PDB 1tn5 EBI.jpg
PDB 1x0i EBI.jpg
PDB 1iw6 EBI.jpg
PDB 1brx EBI.jpg
PDB 1vjm EBI.jpg
PDB 1mgy EBI.jpg
PDB 1iw9 EBI.jpg
PDB 1cwq EBI.jpg
PDB 1dze EBI.jpg
PDB 1ap9 EBI.jpg
PDB 1qm8 EBI.jpg
PDB 1x0s EBI.jpg
PDB 1ucq EBI.jpg
PDB 1x0k EBI.jpg
PDB 1ixf EBI.jpg
PDB 1e0p EBI.jpg
PDB 1brr EBI.jpg
PDB 1fbb EBI.jpg
PDB 1at9 EBI.jpg
PDB 1r84 EBI.jpg
PDB 1l0m EBI.jpg
PDB 1e12 EBI.jpg
PDB 1h68 EBI.jpg
PDB 2f95 EBI.jpg
PDB 1gue EBI.jpg
PDB 1xio EBI.jpg
PDB 2g87 EBI.jpg
PDB 1l9h EBI.jpg
PDB 1f88 EBI.jpg
PDB 1ln6 EBI.jpg
PDB 1oed EBI.jpg
PDB 1by5 EBI.jpg
PDB 1by3 EBI.jpg
PDB 2fcp EBI.jpg
PDB 1qfg EBI.jpg
PDB 1qff EBI.jpg
Terms of Use   Search of the Day