Bio Chemistry Collection (page 2)

Cholera toxin, molecular model
Cholera toxin. Molecular model of the secondary structure of cholera enterotoxin (intestinal toxin). The molecule consists of two subunits, A (top) and B (bottom)

Progesterone hormone
Polarised light micrograph of crystals of progesterone. X 40

Isotretinoin anti-acne drug, molecular model. Atoms are represented as tubes and are colour- coded; carbon (yellow), hydrogen (white) and oxygen (red)

Mescaline hallucinogenic drug molecule
Mescaline hallucinogenic drug, molecular model. Mescaline is a hallucinogenic drug, produced from the dried tops (buttons) of the peyote cactus (Lophophora williamsii)

Valdecoxib anti-inflammatory drug
Valdecoxib, computer model. This drug was used in the treatment of osteoarthritis, rheumatoid arthritis and menstrual symptoms under the trade name Bextra

Paclitaxel drug molecule
Paclitaxel. Computer model of a molecule of the drug paclitaxel. It is sold under the brand name Taxol. It is a chemotherapy drug, used to treat cancers

Serotonin neurotransmitter molecule
Serotonin molecule. Computer artwork of a molecule of serotonin (5-hydroxytryptamine, C10.H12.N2.O), a neurotransmitter. Atoms (spheres) are colour- coded: carbon (black), hydrogen (white)

International biohazard symbol warning of a potential biological hazard. This symbol is used worldwide in laboratories and on containers where biologically active agents are present

Vitamin B12 injection, conceptual artwork
Vitamin B12 injection, conceptual composite artwork

DNA by tunnelling microscope
False-colour scanning tunnelling micrograph (STM) of DNA. A sample of uncoated, double-stranded DNA was dissolved in a salt solution & deposited on graphite prior to being imaged in air by the STM

Creation of oil using designer microbes. Conceptual computer artwork depicting an oil well pump in a petri dish, representing the use of artificially created micro-organisms to produce oil

Creation of artificial life, artwork
Creation of artificial life. Conceptual computer artwork depicting the creation of a new life-form in a petri dish. Geneticists are working on methods for combining artificially replicated genes into

Aleksandr Oparin, Russian biochemist
Aleksandr Ivanovich Oparin (1894-1980), Russian biochemist. Oparin is famous for his work on theories of the origin of life

Sindbis virus capsid protein, molecular model

Fluticasone asthma drug molecule
Fluticasone, molecular model. This corticosteroid is used to treat asthma attacks. Atoms are represented as spheres and are colour-coded: carbon (grey), hydrogen (white) oxygen (red)

Tobacco necrosis virus research, artwork
Tobacco necrosis virus research, computer artwork

DNA electrophoresis gels, artwork
DNA electrophoresis. Computer artwork of agarose electrophoresis gels. Each gel reveals different fragments of DNA. The fragments are separated by applying an electric current across the gel

Yeast protein interaction map
Yeast protein map showing relationships between proteins in the yeast Saccharomyces cerevisiae. Each dot represents one of the proteins found in this single-celled fungus

View of microtubes, pipette & DNA sequence
DNA research. View of a pipettor tip (lower left) and microtubes in a rack on top of a DNA sequence. The DNA sequence which is also known as an autoradiogram

DNA fingerprints. The photo shows an X-ray (or autoradiograph) of bands of DNA produced by the technique of electrophoresis in an agarose gel

Genetic security. Conceptual computer artwork of a strand of DNA (deoxyribonucleic acid) locked inside a padlock. This may represent the protection of an individuals genetic code from exploitation

DNA, computer artwork. DNA (deoxyribonucleic acid) consists of two strands (yellow) of sugar phosphates forming a double helix

Genetic sequence. Printout of the genetic code of a single strand of DNA (deoxyribonucleic acid). DNA normally comprises two spiralling paired strands of sugar phosphates that are linked by

Samples of DNA being loaded onto an agarose gel
MODEL RELEASED. DNA electrophoresis. Researcher loads a sample of DNA (DeoxyriboNucleic Acid) into an agarose gel for separation by electrophoresis

DNA fingerprinting used to analyse family relationships. The photo shows an X-ray (or autoradiograph) of bands of DNA produced by the technique of electrophoresis in an agarose gel

Desmosome cell junction, artwork
Desmosome cell junction. Computer artwork showing the structure of an adhesion junction, or desmosome. Desmosomes form the most common type of junction between epithelial cells

Parathyroid hormone molecule. Computer model showing the structure of parathyroid hormone (PTH), or parathormone. Atoms are colour-coded (carbon: dark grey, hydrogen: light grey, oxygen: red)

Ghrelin hormone molecule. Computer model showing the crystal structure of the human hormone ghrelin. The crystal structure consists of both the secondary structure

Alanine, molecular model
Alanine. Molecular model of the amino acid alanine. Its chemical formula is C3.H7.N.O3. Atoms are represented as balls and are colour-coded: carbon (blue), hydrogen (gold)

Metopus protozoan

Thalassomyxa australis protozoan
Thalassomyxa protozoan. Coloured scanning electron micrograph (SEM) of a Thalassomyxa australis prot- ozoan (single-celled animal)

Lembadion protozoan. Coloured scanning electron micrograph (SEM) of a Lembadion bullinum protozoan (single-celled animal)

Spirochona protozoa

Trichomytopsis protozoan

Tetrahymena protozoa. Immunofluorescent light micrograph of two Tetrahymena thermophila protozoa (single-celled animals). Nuclei are green, cell walls red and cilia (hairs) blue. T

Dendrocometes protozoan. Coloured scanning electron micrograph (SEM) of a Dendrocometes paradoxus protozoan (single-celled animal)

Pipette held in a gloved hand

Haemoglobin blood test. Researcher using optical equipment to test for the presence of haemoglobin in a blood sample. Haemoglobin is the oxygen-carrying pigment that gives blood its red colour

Mass spectrometer in protein research
Mass spectrometer used to determine the sequence of amino acids in proteins during proteomics research. Proteomics is the study of the structure and function of proteins

Biodiesel, conceptual artwork. Fuel containers with plant leaves on their surfaces, representing a fuel made from plant sources

Lampbrush chromosomes, TEM
Lampbrush chromosomes. Coloured transmission electron micrograph (TEM) of lampbrush chromosomes (LBCs). A chromosome consists of proteins and DNA (deoxyribonucleic acid)

Insulin-secreting pancreatic cells
Insulin production. Artwork of a section through beta cells secreting insulin (blue spheres) into a capillary (small blood vessel, grey tube). Beta cells are found in the pancreas

Neuromuscular synapse, light micrograph
Neuromuscular junction. Fluorescent confocal light micrograph of the junction between a nerve cell and a muscle (not seen). The axon of the nerve cell (neuron) has been tagged with a blue dye

Immunoglobulin G antibody. Molecular model of the antibody immunoglobulin G (IgG). Each coloured strand represents a protein chain

Red blood cells and molecules, artwork
Red blood cells and drug molecules, computer artwork. Red blood cells (erythrocytes) are responsible for supplying tissues with oxygen and are the most abundant type of cell in the blood

Panspermia: biomolecules in the universe
Panspermia, conceptual computer artwork. The theory of panspermia states that the molecules that form the building blocks of life are found throughout the universe

Molecular design. Computer artwork of plans for a molecular model of the nucleotide adenine with the finished model. The atoms are shown as spheres and are colour coded: carbon (yellow)

Quantum dot probe, artwork
Quantum dot probe. Computer artwork of a quantum dot, a nanocrystal (InAs crystal, orange) that can be used to probe the immune system

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Biochemistry is the captivating realm where science and life intertwine, revealing the intricate secrets of our existence. As I gaze at the computer screen displaying a mesmerizing human genetic sequence, I am reminded of the boundless potential encoded within each double-stranded RNA molecule. The elegant dance of DNA transcription unfolds before my eyes, its molecular model illuminating the blueprint of life itself. In another corner, caffeine crystals come to life under a light micrograph, reminding us that even in our daily rituals lies an underlying biochemical symphony. The iconic DNA molecule stands tall as a symbol of discovery and progress, thanks to the pioneering work of Watson and Crick who unraveled its mysteries. Isaac Asimov's brilliance shines through as we acknowledge his contributions not only as a renowned US author but also as a biochemist who bridged literature with scientific exploration. Artistic renditions capture the beauty and complexity of metabolic enzymes and secondary structures of proteins, showcasing nature's ingenuity at every turn. The quest for knowledge extends into brain protein research; unlocking these enigmatic molecules could hold answers to understanding neurological disorders that plague humanity. A stunning computer artwork reveals beta DNA segments intertwined with spheres like celestial bodies orbiting their own gravitational pull - an awe-inspiring representation of interconnectedness on both macroscopic and microscopic scales. Amidst it all lies the nucleotide base matrix - an intricate web connecting all living beings across time and space. Biochemistry beckons us to explore this matrix further; deciphering its language holds profound implications for medicine, agriculture, biotechnology, and beyond. In this captivating world where science meets life's building blocks, biochemistry invites us to unravel nature's deepest secrets while inspiring wonderment at every step along this remarkable journey.