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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.

Close-up shot of a petri dish for checking an antibiotic in the laboratory.

Antibiotic resistance testing. Selective focus show the inhibition zone of Ofloxacin (OXF) antibiotic on microbial colony.

EHEC grown on an agar plate.

Copper(II) sulfate with molecular structure. Chemical ingredient used in medical and public health issues.

3D Caffeine Molecule Made From Coffee Beans Illustration Isolated on Black and White Background With Clipping Path. Caffeine is a Drug That Stimulates the Activity of Your Brain and Nervous System by Blocking the Action of Adenosine.

Hemp Floral Wax in a petri dish

3D cartoon and Gaussian surface models with a putative membrane shown, PDB 4p02, white background

Chemical formula of Cortisol

Scientist hands holding a petri dish with bacterial colonies. Laboratory routine work concept.

Candida grown on agar plate

Cedar pollen

Close-up shot of a petri dish for checking an antibiotic in the laboratory.

Colorful bacterial colonies close up. Different microbes on meat-peptone agar in petri dish. Isolation on black.

$A model of the phospholipid bilayer structure that makes up living cells and their contents. Its raw, beautiful appearance evokes images of biology and biochemistry. It can be used in magazines and textbooks and on the covers of presentations.\nThis image was not created by AI.$

Filtration and water purification scheme contaminated molecules pass through filter layers

In vitro bacterial culture

Antimicrobial susceptibility testing in petri dish. Microbiologist check Antibiotic resistance of bacteria

A quadrant streak of the bacterium Staphylococcus aureus cultured or inoculated on Baird-Parker agar with egg tellurite .

Chain or ribbon diatom, a type of algae.

Mannitol is a type of sugar alcohol. It is used as a low calorie sweetener as it is poorly absorbed by the intestines. As a medication, it is used to decrease pressure in the eyes, as in glaucoma, and to lower increased intracranial pressure.

Close-up shot of a petri dish for checking an antibiotic in the laboratory.

Two discs of antibiotics placed over a culture of bacteria. Testing microorganisms for antibiotic resistance. Space for text

stx2a is a subtype of Shiga toxin-producing E. coli (STEC) linked to Hemolytic Uremic Syndrome (HUS), a severe condition impacting kidney function and blood clotting. STEC poses a significant risk of foodborne illness and can spread within communities including family members.

Backgrounds of Characteristics and Different shaped Colony of Bacteria and Mold growing on agar plates from Soil samples for education in Microbiology laboratory.

29 October Republic Day of Türkiye text on a red shiny sphere with a partial Turkish flag on white background. Easy to crop for all your print sizes and social media needs.

sea urchin eggs fertilization

Abstract Glassmorphism Style Background - 3d rendered image of design elements. Transparent frosted acrylic interface objects. Realistic glassmorphism matte plexiglass shapes. Frames and spheres.

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