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    Illustration of enzymes driving synthesis of energy-carrying molecule ATP. — Stock Photo
    Illustration of enzymes driving synthesis of energy-carrying molecule ATP.
    Chimeric antigen receptor in brain cell membrane, illustration. — Stock Photo
    Chimeric antigen receptor in brain cell membrane, illustration.
    Medical illustration of human cell structure on dark background. — Stock Photo
    Medical illustration of human cell structure on dark background.
    Illustration of bacteriophages (purple) infecting a bacterial cell. Bacteriophages, or phages, infect a bacterium by attaching to its surface (blue) and injecting genetic material (brown) into the cell — Stock Photo
    Illustration of bacteriophages (purple) infecting a bacterial cell. Bacteriophages, or phages, infect a bacterium by attaching to its surface (blue) and injecting genetic material (brown) into the cell
    Medical illustration of human cell structure on white background. — Stock Photo
    Medical illustration of human cell structure on white background.
    Microscopic cross section view of HIV virus — Stock Photo
    Microscopic cross section view of HIV virus
    3d illustration of a mitochondrion within a cell. Mitochondria are organelles found in the cytoplasm of eukaryotic cells. They oxidase sugars and fats to produce energy — Stock Photo
    3d illustration of a mitochondrion within a cell. Mitochondria are organelles found in the cytoplasm of eukaryotic cells. They oxidase sugars and fats to produce energy
    Renal Corpuscle and the filtration membrane — Stock Photo
    Renal Corpuscle and the filtration membrane
    Medical illustration of human cell structure on black background. — Stock Photo
    Medical illustration of human cell structure on black background.
    Amyloid precursor protein of cell membrane, digital illustration. — Stock Photo
    Amyloid precursor protein of cell membrane, digital illustration.
    Medical illustration of human cell structure on dark background. — Stock Photo
    Medical illustration of human cell structure on dark background.
    Human white blood cell — Stock Photo
    Human white blood cell
    3d illustration of red cells pattern, full frame. — Stock Photo
    3d illustration of red cells pattern, full frame.
    Medical illustration of human cell structure on white background. — Stock Photo
    Medical illustration of human cell structure on white background.
    Phase contrast light micrograph of Paramecium a ciliate protozoan. — Stock Photo
    Phase contrast light micrograph of Paramecium a ciliate protozoan.
    Medical illustration of human cell structure on white background. — Stock Photo
    Medical illustration of human cell structure on white background.
    Animal cell structure — Stock Photo
    Animal cell structure
    Light micrograph of a section through a nasal polyp, a benign growth that arises from a mucous membrane. — Stock Photo
    Light micrograph of a section through a nasal polyp, a benign growth that arises from a mucous membrane.
    Conceptual illustration of organic cell structure. — Stock Photo
    Conceptual illustration of organic cell structure.
    Magnified digital illustration of human cell cross-section. — Stock Photo
    Magnified digital illustration of human cell cross-section.
    Human white blood cell — Stock Photo
    Human white blood cell
    Colorful 3d illustration of cell division, cell membrane and splitting red nucleus. — Stock Photo
    Colorful 3d illustration of cell division, cell membrane and splitting red nucleus.
    Structure of cellular organelles — Stock Photo
    Structure of cellular organelles
    Magnified digital illustration of mitochondrion cell. — Stock Photo
    Magnified digital illustration of mitochondrion cell.
    Activation of T-cell immune response, illustration. — Stock Photo
    Activation of T-cell immune response, illustration.
    Anatomy of human ear with membranous labyrinth — Stock Photo
    Anatomy of human ear with membranous labyrinth
    Single abstract bacterium on black background, computer illustration. — Stock Photo
    Single abstract bacterium on black background, computer illustration.
    Magnified digital illustration of human cell cross-section. — Stock Photo
    Magnified digital illustration of human cell cross-section.
    Illustration of blue cell membrane on white background. — Stock Photo
    Illustration of blue cell membrane on white background.
    Cell membrane structure, digital illustration. — Stock Photo
    Cell membrane structure, digital illustration.
    Cell membrane structure, digital illustration. — Stock Photo
    Cell membrane structure, digital illustration.
    3d illustration of green cells pattern with red nuclei. — Stock Photo
    3d illustration of green cells pattern with red nuclei.
    Paramecium ciliate protozoan — Stock Photo
    Paramecium ciliate protozoan
    Single abstract bacterium on black background, computer illustration. — Stock Photo
    Single abstract bacterium on black background, computer illustration.
    3d illustration of cell division, cell membrane and splitting red nucleus. — Stock Photo
    3d illustration of cell division, cell membrane and splitting red nucleus.
    Illustration of cell membrane with embedded proteins, molecules and T-cell receptor. — Stock Photo
    Illustration of cell membrane with embedded proteins, molecules and T-cell receptor.
    Mature virus and budding release of HIV — Stock Photo
    Mature virus and budding release of HIV
    Mature virus and budding release of HIV — Stock Photo
    Mature virus and budding release of HIV
    Finger-like projections of the duodenum — Stock Photo
    Finger-like projections of the duodenum
    Illustration of purple chloride channels in cell membrane. — Stock Photo
    Illustration of purple chloride channels in cell membrane.
    Magnified digital illustration of human cell cross-section. — Stock Photo
    Magnified digital illustration of human cell cross-section.
    Antibody blocking programmed cell death, illustration. — Stock Photo
    Antibody blocking programmed cell death, illustration.
    Illustration of blue cell membrane on white background. — Stock Photo
    Illustration of blue cell membrane on white background.
    Medical illustration of human cell structure on black background. — Stock Photo
    Medical illustration of human cell structure on black background.
    Stages of autophagy mechanism — Stock Photo
    Stages of autophagy mechanism
    Single abstract bacterium on black background, computer illustration. — Stock Photo
    Single abstract bacterium on black background, computer illustration.
    Stages of autophagy mechanism — Stock Photo
    Stages of autophagy mechanism
    Medical illustration of human cell structure on black background. — Stock Photo
    Medical illustration of human cell structure on black background.
    Magnified digital illustration of human cell cross-section. — Stock Photo
    Magnified digital illustration of human cell cross-section.
    Illustration of transparent cells with splitting nuclei, cell membrane and visible chromosomes. — Stock Photo
    Illustration of transparent cells with splitting nuclei, cell membrane and visible chromosomes.
    Cell membrane structure, digital illustration. — Stock Photo
    Cell membrane structure, digital illustration.
    Activation of T-cell immune response, illustration. — Stock Photo
    Activation of T-cell immune response, illustration.
    Microscopic cross section view of HIV virus — Stock Photo
    Microscopic cross section view of HIV virus
    Renal Corpuscle and the filtration membrane — Stock Photo
    Renal Corpuscle and the filtration membrane
    Medical illustration of human cell structure on white background. — Stock Photo
    Medical illustration of human cell structure on white background.
    Structure of cellular organelles — Stock Photo
    Structure of cellular organelles
    3d illustration of internal structure of human cell. — Stock Photo
    3d illustration of internal structure of human cell.
    Magnified digital illustration of human cell cross-section. — Stock Photo
    Magnified digital illustration of human cell cross-section.
    Opioid and cannabinoid receptors in brain cell membrane, illustration. — Stock Photo
    Opioid and cannabinoid receptors in brain cell membrane, illustration.
    T-cell receptor-MHC-antigen complex — Stock Photo
    T-cell receptor-MHC-antigen complex