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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

$Phospholipid bilayer membrane structures that make up living cells and their contents. This is an image of membrane proteins in the membrane.\nThis image, which looks like a plastic model, evokes biology and biochemistry. It can be used as a cover for magazines, textbooks and presentation materials.\nThis image was not created by AI.$

Lobomycosis, a chronic skin disease caused by microscopic fungi Lacazia loboi and characterized by nodular and keloidal lesions primarily affecting the limbs and ears, 3D illustration

Digital Dispersed corona virus on petri dish. Animation of multiplication of CORONA VIRUS COVID-19

3D cartoon and Gaussian surface models, chain id color scheme, PDB 7t3a, white background

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 Zea Stem C.S. under light mircoscope with white background

Cell membrane and biology, biological concept, 3d rendering. Computer digital drawing.

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.

Burkitt lymphoma is a form of non-Hodgkin's lymphoma in which cancer starts in immune cells called B-cells. Recognized as a fast growing human tumor, Burkitt lymphoma is associated with impaired immunity and is rapidly fatal if left untreated.

Intracellular transport, kinesin motor proteins, orange, transport molecules moving across microtubules, 3D illustration

$The three-dimensional structure of proteins is represented in a variety of conformations. This image is based on the ribbon structure of a protein. It is suitable for biology notebooks and book covers.\nThis image has not been created by AI.$

Cell membrane cholesterol is shown in pink. 3D cartoon and Gaussian surface models, PDB 7rpk, white background.

$What micro plastic is made of - Chemical ingredients.\nClose up of microplastic on finger concept of water pollution and global warming$

Liver Fluke Section under light microscope 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).

Urothelial carcinoma, high grade. High-grade tumors have an aggressive appearance under a microscope and are assumed invasive in the kidney or ureter.

Isolated immobile nucleic acid junctions. An immobile Holliday junction. four arm 3d rendering

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.

Nucleosome structure. Structure of an oligonucleosome, showing the packaging of DNA in chromosomes. 3D illustration.

Photomicrograph of two rotifers. Rapidly rotating cilia at top of heads, internal organs visible. Live specimen. Wet mount, 10X objective, transmitted brightfield illumination.

Ukraine flag balloons banner background. 3d render.

The glucagon like peptide-1 receptor (GLPr) is a G proteincoupled receptor (GPCR) that mediates the action of GLP-1, a peptide hormone. The activated receptor has a strong effect on the management of type 2 diabetes mellitus and obesity, including glucose homeostasis and regulation of gastric motility and food intake.

Brain-derived neurotrophic factor and Neurotrophin-4, NT-3 are neurotrophic factors in the NGF (Nerve Growth Factor) family of neurotrophins. 3D cartoon and Gaussian surface models with differently colored chains, white background.

Cryptococcal pneumonia. Cryptococcal pneumonia is a fungal infection caused by Cryptococcus neoformans predominantly in immunosuppressed individuals and rarely in the immunocompetent population.

Skin tumors, moles and spots, 3d section of the skin layer. Three types of skin cancer, squamous cell carcinoma, basal cell carcinoma, melanoma. 3d render

Free Images: "bestof:EGFR signaling pathway.png EGFR signaling pathway svg Epidermal growth factor receptor EGFR signaling pathway Original work 2007-02-11 Eikuch Cell signaling"

First_Tree_Cutting;_Beginning_of_Construction.jpg

Thomas_Luny_-_A_merchant_ship_signaling_for_a_pilot_off_the_cliffs_of_Dover.jpg

An Autumn pathway, zoo park 4a13181v.jpg