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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.

Global communication and collaboration intricately involving electronic ropes and keys through social networking of smart phones equipped with AI.

The sacrotuberous ligament (STL) is a stabiliser of the sacroiliac joint and connects the bony pelvis to the vertebral column 3d illustration

Xray view of a patient with an injured spine and suffering. / You can see the animation movie of this image from my iStock video portfolio. Video number: 1453180480

Nourish hair of shampoo or serum. Repair damaged hair concept, 3d rendering.

blackboard full of chemical formula

plant Pumpkin ovary under light mircoscope with white background

Imipenem antibiotic molecule, 3D illustration. Intravenous beta-lactam broad spectrum antibiotic resistant to beta-lactamase enzymes produced by many multidrug-resistant Gram-negative bacteria

Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet), ampicillin (red).

Close up of cristal beads

Licmophora sp. is a genus of benthic diatom. It is an epiphyte, which means it must perch on another organism or object for structural stability

3d Rendering Molecular Structure,Ozone,Hydrogen and oxygen

A triangular bone in the lower back formed from fused vertebrae and situated between the two hip bones of the pelvis.

3d rendering of transparent molecule shape on green color background.

Cell membrane with white background, 3d rendering. Computer digital drawing.

Male Human skeleton

Calcidiol molecule, also called calcifediol, major circulating metabolite of vitamin D3 produced in liver, 3D illustration

DNA Helix - 3d rendered image. Genetic research concept. Complex spiral structure illustration. Medical, science, genetic biotechnology, gene cell, chromosome idea. DNA strands on dark background . Science nanotechnology. Hologram view. HUD, FUI, SEM

The somatostatin receptor inhibits the secretion of multiple hormons, e.g. the growth hormone and thyroid-stimulating hormone. Therefore it is considered as a target for treating multiple tumors. Somatostin also inhibits insulin and glucagon secretion.

Man preparing to repair the wall. He is cutting a square hole in the wall to replace the damaged sheetrock

Aerial view of loyster farm by Ardara, County Donegal - Ireland.

Photomicrograph of the ciliate Stentor coeruleus. Typical blue-green color. Live specimen. Wet mount, 5X objective, transmitted brightfield illumination.

Squalane is a hydrocarbon derived by hydrogenation of squalene. 3d illustration

plant pittospora leaf c.s. under light mircoscope with white background

Human hair with dandruff and close-up view of microscopic fungi Malassezia furfur that cause dandruff and seborrhoeic dermatitis, 3D illustration

Flush toilet, green hammer and green screwdriver to remove white cement from a toilet base. to replace or make repairs

Painting tools blue painter tape for equipment for painting wall

Chemical formula of Progesterone

Rolled up metal shutters ready for window installation

Molecular structure of Chloroform CHCl3

Free Images: "bestof:Chloroethane-skeletal.svg en chloroethane pl chloroetan own Maciejo93 2 01 2009 Chloroethane"

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