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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).
Cosmetic serum Oil drop on Saggy skin cell, Skin Repair, moisturizer, collagen serum, advertising background ready to use, 3D rendering
Cell Membrane Phospholipid Structure,Phospholipid bilayer of the cell membrane,Lipid bilayer
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.
Inside protein molecule
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.
Lily leaf c.s. under microscope
Cells in the body examined by endoscope
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
Particles, medical concept
B-chain pentamer and A-chain subunit (green), 3D cartoon and Gaussian surface model, white background
H2 Hydrogen Molecule Fuel Cell Element Vehicle Biodegradable Ethical Renewable Energy
Acetylcholine receptors in the lipid layer of cell membrane.
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.
DNA A-T Pair
Biological protein and molecule, 3d rendering. 3D illustration.
Immunotherapy of Alzheimer's disease: Monoclonal antibody (light blue) bound to an amyloid beta peptide (orange),  that is aggregated to amyloid beta fibrils, which build up amyloid plaques.
Shiny artificial molecular structure in many colors. Horizontal composition, isolated on black background.
3D cartoon and molecular surface models, chain id color scheme, putative membrane shown, pdb 1l7v, white background
A ball and stick model of a Polytetrafluoroethylene molecule, also known as PTFE or most commonly Teflon. It is a polymer consisting of only carbon and fluorine atoms. It is used as a non-stick coating for cookware, as a lubricant, and it is also used to contain highly reactive chemicals as it is extremely non-reactive.
Glucose-6-phosphate dehydrogenase (G6PD) protein. Enzyme of the pentose phosphate pathway that generates co-enzyme NADPH. 3D illustration.
Bacteria pathogen - 3d rendered microbiology image. Illustrate of Lactobacillus Bulgaricus Bacteria, Microbacterium Tuberculosis Bacteria (MTB). Medical research, health-care concept. SEM (TEM) scanning view
Ball and stick 3D render of the caffeine molecular structure.
Modern abstract painting. Colorful flowing art painting. Geometric 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.
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
3D cartoon and Gaussian surface models, putative membrane shown, PDB 5z62, white background.
Different germs in the human intestines called microbiome,Bacteria Lactobacillus in human intestine,Beneficial healthy intestinal bacterium microflora,Gut bacteria
Free Images: "bestof:PDB 1bxw EBI.jpg Membrane and cell surface proteins and peptides Transmembrane beta-barrels OMPA-like Outer membrane protein Outer membrane protein A OMPA"
Hepatitis B virus v2.svg
TOM complex.svg
Lipid raft organisation scheme.svg
Cell membrane detailed diagram blank.svg
Human genome by functions.svg
Insulin glucose metabolism ZP.svg
Insulin glucose metabolism ZP-ca.svg
Cellular tight junction keys.svg
Cell membrane detailed diagram id.svg
Scheme facilitated diffusion in cell membrane-zh (zh-tw).svg
Scheme facilitated diffusion in cell membrane-en.svg
Scheme facilitated diffusion in cell membrane-zh.svg
Scheme facilitated diffusion in cell membrane-eo.svg
Scheme facilitated diffusion in cell membrane-ca.svg
Bacteria.svg
Euglenid pellicula scheme.svg
Diagram human cell nucleus numbered version.svg
Lipid bilayer fusion.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
Adherens Junctions structural proteins.svg
Cell membrane detailed diagram et.svg
Cell membrane detailed diagram ca.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 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
Black lipid membrane.svg
Outer hair cell and Deiter's cell.svg
Scheme simple diffusion in cell membrane-es.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-zh (zh-tw).svg
Scheme facilitated diffusion in cell membrane-es.svg
Scheme simple diffusion in cell membrane-en.svg
Scheme simple diffusion in cell membrane-de 02.svg
Scheme facilitated diffusion in cell membrane-fr.svg
Scheme simple diffusion in cell membrane-pl.svg
Scheme simple diffusion in cell membrane-fr.svg
Scheme simple diffusion in cell membrane-ca.svg
2ph1 pdb gallery nucleotide binding-protein-2 (MinD homolog).svg
biology-cell-diagram-science-41522.svg
PEM fuelcell.svg
bacterium-nucleoid-cytoplasm-cell-307660.svg
Bialka blonowe-grafik.svg
Trachelomonas lorica.svg
Hodgkin-huxley-circuit.svg
PEM fuel cell.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
Lipid vesicles.svg
FtsZ Filaments.svg
Prokaryote cell diagram international.svg
Fagocytoza.svg
Semnalizare engl.svg
Frap diagram.svg
Bilayer hydration profile.svg
Animal Cell.svg
Plant cell wall nl.svg
5HT1A-schema.svg
Lipid vesicle vs soap bubble.svg
Scheme sodium-potassium pump-it.svg
Scheme sodium-potassium pump-ja.svg
Osmotic pressure on blood cells diagram.svg
Plant cell wall diagram-en.svg
Scheme sodium-potassium pump-en.svg
ETC electron transport chain.svg
Desmosome cell junction pl.svg
Osmotic pressure on blood cells diagram-it.svg
Lipid unsaturation effect.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
Scheme sodium-potassium pump-pl.svg
Scheme sodium-potassium pump-bs.svg
Intermediate filament.svg
Scheme sodium-potassium pump-he.svg
Stat domain structure (zh-cn).svg
Scheme secundary active transport-en.svg
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