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A ball and stick model of Human Insulin. Isolated on black.
orange: RNA primer; red: RNA template; light blue: proofreading riboexonuclease; mid blue: helicase; dark blue: RNA directed RNA polymerase; violet: non structural proteins (NSPs).
3D cartoon and Gaussian surface models, chain id color scheme, PDB 7t3a, white background
Textured cells under heavy magnification
Food containing natural iron. Fe: Liver, avocado, broccoli, spinach, parsley, beans, nuts, on a white background. Top view.
Inside protein molecule
Covid-19 Coronavirus Variants Omicron Delta Gamma Beta Alpha Pandemic Virus Disease Mutation
Different fresh products and paper with Tyrosine chemical formula on white wooden table, flat lay. Sources of essential amino acids
Backgrounds of Bacteria and Mold under the microscope in Lab.
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.
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
Cells in the body examined by endoscope
B-chain pentamer and A-chain subunit (green), 3D cartoon and Gaussian surface model, white background
Liver Fluke Section under light microscope with white background
DNA A-T Pair
Nutritious various ingredients containing natural minerals and vitamin K
Different types of cat food in in bowls on grey surface with copy space
Bacteria pathogen - 3d rendered microbiology image. Illustrate of Lactobacillus Bulgaricus Bacteria, Microbacterium Tuberculosis Bacteria (MTB). Medical research, health-care concept. SEM (TEM) scanning view
Bacterial multidrug efflux pumps (E-CmeB) expel antibiotics  from inside the bacterium (bottom): ciprofloxacin (yellow), chloramphenicol (violet),  ampicillin (red).
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.
3D cartoon and Gaussian surface models, PDB 1j7n, chain id color scheme, white background
A model of a transcription factor binding to a strand of DNA. Transcription factors are proteins which bind to specific sequences of DNA, enabling and controlling the copying of genetic data.
Collage with sesame flour and seeds on white background
Blastomycosis is a fungal infection caused by inhaling Blastomyces dermatitidis spores. If it involves only the lungs, it is called pulmonary blastomycosis. Only about half of people with the disease have symptoms, which can include fever, cough, night sweats, muscle pains, weight loss, chest pain, and feeling tired.
Nutritious healthy food containing selenium, dietary fiber and other vitamins and minerals
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.
Immunotherapy of Alzheimer's disease: Monoclonal antibody (light blue) bound to an amyloid beta peptide (orange),  that is aggregated to amyloid beta fibrils, which build up amyloid plaques.
Photomicrograph of flatworm,
Spike glycoprotein homotrimer, a main target for neutralization antibody, to bind its receptor, ACE2, and mediate membrane fusion and virus entry. 3D cartoon and Gaussian surface models, white background.
Slice of natural crystal for patterns and textures use with high resolution.
Free Images: "bestof:PDB 1ghh EBI.jpg Alpha and beta proteins a+b DNA damage-inducible protein DinI DNA damage-inducible protein DinI DNA damage-inducible protein DinI DNA"
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