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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.
Bronchitis and alveolitis in lung of horse infected with equine influenza virus, 200x magnification.
Kidney Tissue, 3D artwork.
Histological Cerebellum human, Sympathetic ganglion human And Spinal cord human under the microscope for education.
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.
plant Pine Stem C.S. under light mircoscope with white background
3D illustration of a cluster of Fat cells isolated on white.
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,
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.
Internal structure of an animal cell, 3d rendering. Section view. Computer digital drawing.
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.
Stratified flat epithelium under microscope
ATP Synthase Protein - 3d rendered image. Medical microbiology concept.  Structure and conformational states of the bovine mitochondrial ATP (Adenosine triphosphate) synthase. Chemical energy is synthesized in eukaryotic cells primarily. Hydrolase. Hologram view. HUD, FUI
Microscopic preparation, tissue plant
plant rape flower cross section under light mircoscope with white background
The calcitonin gene related peptide (yellow) binds to its receptor (blue) on neurons and smooth muscle cells of cerebral blood vessels, activating a signal cascade through G-proteins (dark blue) in this cells that  leads to a dilatation of the blood vessels (vasodilatation).
Myxoid liposarcoma.  Myxoid/round cell liposarcoma, or MRCLS, is one of several types of liposarcoma. Liposarcoma is a rare cancer that grows in the cells that store fat in the body. MRCLS usually grows in the arms and legs. These tumors grow slowly, and they can spread to other parts of the body
3D cartoon and Gaussian surface models, chain id color scheme, PDB 7t3a, white background
Human embryonic stem cells
Thyroid cancer: Microscopic image of Metastatic papillary carcinoma of thyroid. Reactive change. Lymph node carcinoma.
Squash preparation of  onion root tip cells stained to reveal chromosomes,  Bright field illumination, light microscopy.  This image was taken with the X40 objective lens.  Depth of focus is extremely low at this magnification.  Smaller apertures give greater depth of focus, but image quality deteriorates and resolution is greatly reduced.  The aperture in this image was optimised for contrast and resolution. Chromatic abberation is inevitable in light microscopy, but has been kept to a minimum in this image.
Licmophora sp. algae, marine and freshwater diatom under microscopic view. Genus of benthic, photosynthetic and epiphyte diatom
3d cell organelle - nucleus (Chromatin,  Rough Endoplasmic Reticulum, Nucleus Shell, Nucleoplasm, Nucleolus)
HER2 (light blue)  locked in the inactive conformation by Trastuzumab (left) and Pertuzumab. Trastuzumab has drastically improved the prognosis of HER2-positive breast cancer patients.
anaplastic thyroid carcinoma with heterologous differentiation (leiomyosarcoma)
Dicot plants stem show plant vascular tissue under light microscope view for botany education.
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
What micro plastic is made of - Chemical ingredients.\nClose up of microplastic on finger concept of water pollution and global warming
Free Images: "bestof:Complete cell lineage of C elegans.png en Complete cell lineage of C elegans The history of cellular divisions that sequentially tracks the parents of a"
Persian(IRAN)_Empire_1747.jpg
bee_19992,_f,_face,_kenya_2014-08-07-14.58.57_ZS_PMax.jpg
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Fra_Angelico,_Fra_Filippo_Lippi,_The_Adoration_of_the_Magi.jpg
BoschTheCrucifixionOfStJulia.jpg
Pieter_Brueghel_the_Elder_-_The_Dutch_Proverbs_-_Google_Art_Project.jpg
Complete neuron cell diagram en.svg
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"Rutger_Jan_Schimmelpenninck_with_his_Wife_and_Children",_by_Pierre-Paul_Prud'hon_(1801-02).jpg
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volkov_cell.jpg
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Trackers-historygraph-2012-01.svg
Rule 90 gate array.svg
Diagram human cell nucleus oc.svg
piranesi_remains_temple_neptunes_cell.jpg
botticelli_st_augustine_his_cell_1490.jpg
piranesi_remains_columns_making_up_side_porches_temple_cell_above.jpg
piranesi_cell_inside_basilic_st_paul_outside_walls.jpg
Rule 184 cars.svg
piranesi_marble_table_found_triclinium_priests_bolt_door_cell_temple_isis_inc_outlin.jpg
Complete graph K5.svg
Cellular tight junction-gl.svg
9th Field Artillery Regiment COA.svg
41st Field Artillery Regiment DUI.svg
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5th U.S. Army Artillery Group DUI.svg
Taglung_Lineage_Teachers_-_Google_Art_Project.jpg
piranesi_black_white_mosaic_floor_temple_cell_referred_above_which_was_inscribed_ent.jpg
Frap diagram.svg
512th US Army Artillery Group DUI.svg
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Myofilament.svg
56th Field Artillery Command DUI.svg
Price history of silicon PV cells since 1977.svg
Cellular tight junction keys.svg
Lipid unsaturation effect.svg
Lipid vesicle vs soap bubble.svg
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Andrea Vaccaro (Attr.) - St Agatha in her cell.jpg
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Lipid unsaturation effect es.svg
Plant cell structure svg 2.svg
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Ernst Ludwig Kirchner - Berlin Street Scene - Google Art Project.jpg
Claude_Monet_-_Winter_Landscape_with_Evening_Sky_-_Google_Art_Project.jpg
Karl_Isakson_-_Still_life_-_Google_Art_Project.jpg
Mór_Erdélyi_-_Jókai_in_his_study_-_Google_Art_Project.jpg
Schrimpf,_Georg_-_Portrait_Oskar_Maria_Graf_-_Google_Art_Project.jpg
Stuck,_Franz_von_-_Salome_-_Google_Art_Project.jpg
Werefkin, Marianne von - Selfportrait I - Google Art Project cropped.jpg
gerarddavid_lineage_saint_anne_c_1500.jpg
Claude Monet - The Luncheon - Google Art Project.jpg
Auguste Renoir - After the Luncheon - Google Art Project.jpg
Ernst Ludwig Kirchner - Standing Nude with Hat - Google Art Project.jpg
Ingres_antiochus_and_stratonice.jpg
Lovis_Corinth_-_Carmencita,_Portrait_of_Charlotte_Berend-Corinth_in_Spanish_Dress_-_Google_Art_Project.jpg
Max_Liebermann_-_Free_Period_in_the_Amsterdam_Orphanage_-_Google_Art_Project.jpg
Kristian_Zahrtmann_-_Grandmother's_Garden_-_Google_Art_Project.jpg
Lars_Hansen_-_Self-Portrait_-_Google_Art_Project.jpg
Karl_Isakson_-_Standing_nude_-_Google_Art_Project.jpg
Karl_Isakson_-_View_over_Gudhjem_-_Google_Art_Project.jpg
Lars_Hansen_-_Young_woman_-_Google_Art_Project.jpg
Karl_Isakson_-_Graveyard,_Christiansø_-_Google_Art_Project.jpg
Lars_Hansen_-_Swedish_peasant_-_Google_Art_Project.jpg
József_Rippl-Rónai_-_Lady_in_red_-_Google_Art_Project.jpg
Miklós_Vadász_-_Illustration_in_Ferenc_Molnár-_Paul_Street_Boys_-_Google_Art_Project.jpg
Delaunay,_Robert_-_Formes_circulaires;_lune_no._1_-_Google_Art_Project.jpg
Jawlensky,_Alexej_-_Portrait_of_the_Dancer_Aleksandr_Sakharov_-_Google_Art_Project.jpg
Werefkin,_Marianne_von_-_Selfportrait_I_-_Google_Art_Project.jpg
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