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).
Cell membrane structure background, 3d rendering. Digital drawing.
The three-dimensional structure of proteins is represented in a variety of conformations. This image is based on the ribbon structure of a protein. It is suitable for biology notebooks and book covers.\nThis image has not been created by AI.
A carboxypeptidase is a protease enzyme that hydrolyzes a peptide bond at the carboxy-terminal end of a protein or peptide. 3D cartoon model, secondary structure color scheme, PDB 2v77, white background.
Cell Membrane Phospholipid Structure,Phospholipid bilayer of the cell membrane,Lipid bilayer
Chain of amino acid or bio molecules called protein - 3d illustration
Hyaline cartilage, Elastic cartilage and Bone Human under the microscope in Lab.
Covid-19 Coronavirus Variants Omicron Delta Gamma Beta Alpha Pandemic Virus Disease Mutation
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.
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.
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.
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.
Acetylcholine receptors in the lipid layer of cell membrane.
Cell Membrane Phospholipid Structure,Phospholipid bilayer of the cell membrane,Lipid bilayer,lipid bi-layer cell anatomy
3D CG rendered image of scientifically accurate Feline Panleukopenia Virus (cat distemper virus) Capsid Structure based on PDB : 1FPV (surface style)
Focal nodular hyperplasia (FNH) is a benign liver lesion that is composed of a proliferation of hyperplastic hepatocytes surrounding a central stellate scar. Typically, FNH is a solitary lesion that is more commonly seen in women.
Cystic fibrosis transmembrane conductance regulator  (CFTR) allows negatively-charged ions, such as chloride and bicarbonate, to pass through the membrane of lung epithell cells. Malfunction leads to cystic fibrosis. Left: inactive form. ATP (red)
A ball and stick model of a strand of a molecule of polyvinyl chloride, more commonly known as PVC. This vinyl polymer is one of the commonest plastics in use.
3D cartoon and Gaussian surface models, chain id color scheme, PDB 7t3a, white background
nanotechnology and abstract graphene structures
Biological protein and molecule, 3d rendering. 3D illustration.
Advanced, sophisticated blue presentation background
Cediranib cancer drug molecule. 3D rendering. Atoms are represented as spheres with conventional color coding.
Quantum Gravity 3d rendered image of a comprehensive exploration of Quantum Gravity theories. String theory, loop quantum gravity (LOG), causal dynamical triangulation, twistor theory, gravitational waves, spacetime, gravity waves, quantum mechanics, quantum entanglement concepts.
From left to right: the NMDA and  AMPA receptors transport calcium cations into neurons after being activated by the neurotransmitter glutamate and  the GABA receptor (right) transport chloride anions after the activation by gamma aminobutyrate. PDB entries: 6wht,  3kg2, 6d6u
Diffuse large B-cell lymphoma, or DLBCL, is a cancer that starts in white blood cells called lymphocytes.
3D cartoon and Gaussian surface models, chain id color scheme, PDB 3omv, white background
Beef tripe for soup
Free Images: "bestof:FhaC protein.GIF en Structure Of The Membrane Protein Fhac Bordetella pertussis filamentous hemagglutinin FHA A Member Of The Omp85TPSB TRANSPORTER FAMILY"
Insulin glucose metabolism ZP.svg
Insulin glucose metabolism ZP-ca.svg
Cellular tight junction keys.svg
Hepatitis B virus v2.svg
Main protein structure levels en.svg
Protein_primary_structure_zh.svg
Main protein structure levels pl - secondary structure.svg
Main protein structure levels zh.svg
Main protein structure levels zh (zh-tw).svg
Protein primary structure zh (zh-tw).svg
Main protein structure levels pl.svg
Main protein structure levels uk.svg
Main protein structure levels bg.svg
Protein_primary_structure.svg
Main protein structure levels fr.svg
Euglenid pellicula scheme.svg
MRNA structure.svg
Laminin sketch.svg
MRNA structure fr.svg
Filanesib.svg
Scheme facilitated diffusion in cell membrane-en.svg
Primärstruktur von Proteinen2.svg
Proteinstructur-ar.svg
Scheme facilitated diffusion in cell membrane-eo.svg
Scheme facilitated diffusion in cell membrane-zh.svg
Pseaa figure1.svg
Scheme facilitated diffusion in cell membrane-zh (zh-tw).svg
2ph1 pdb gallery nucleotide binding-protein-2 (MinD homolog).svg
TOM complex.svg
Taxol structure.svg
Human genome by functions.svg
Cell membrane detailed diagram id.svg
Thyroid hormone synthesis-it.svg
Scheme facilitated diffusion in cell membrane-ca.svg
Thyroid hormone synthesis.svg
Cell membrane detailed diagram blank.svg
FhaC protein.GIF
PBB Protein AKR1A1 image.jpg
Pertactin 1DAB.png
EFhandtree.jpg
CD32ray.png
GIRK 1N9P.png
Tonge redo alpha mannosidase.png
PDB 1flc EBI crop.jpg
LSm Secondary Structure.JPG
Rhodopsin 3D.jpeg
Interleukin-1-receptor+IL-1beta 1ITB.png
Lipase_PLRP2.png
Insulin glucose metabolism bg.jpg
Insulin glucose metabolism bg.png
E2F family member.png
JUDr Rudolf Mares (1909 - 1944).year.1939.JPG
Membrane protein.png
GHCS protein structure.jpg
Protein-primary-structure.png
Protein-structure hy.png
Main protein structure levels bg.png
Protein digestion.PNG
Mercuric reductase protein structure.jpg
Possible SYNE1 protein structure.png
Bak protein.png
Bax protein.png
Bcl-2 protein.png
Bicelleproteinmembrane.jpg
Protein repeating unit.png
Structure_of_the_H2AFJ_protein.jpg
Protein Z.png
1APS PDB PROTEIN.PNG
PARP1 1UK0.png
CRY1Pretty.png
Transthyretin.png
PNGaseF Structure.png
Hemoglobin structure.JPG
Structure cobl.jpg
Mdm2.png
PBB Protein GCG image.jpg
4f0a bio r 500.jpg
GPATCH11_Structure.png
Lrrk2 domains.jpg
MupwithSBT.jpg
1BT6 tetramer.png
DPS 1qgh.png
ATG101 similar structure.jpg
Zp3 structure 3d4g.png
PBB Protein NR4A1 image.jpg
Neuroligin4.png
Predicted Tertiary Structure.png
CARD11.tiff
Computer-generated image of the structure for C-reactive protein.jpg
Apolipoprotein A1 2A01.gif
Detergentmicelle.jpg
PBB Protein CBS image.jpg
PBB Protein SRC image.jpg
PBB Protein BACE1 image.jpg
ScramblasePic.jpg
2HNX.png
Thylakoid targeting.png
PDB 1kmo EBI.jpg
PDB 1po0 EBI.jpg
PDB 1pnz EBI.jpg
Terms of Use   Search of the Day