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Images Dated 10th November 2003

Choose from 32 pictures in our Images Dated 10th November 2003 collection for your Wall Art or Photo Gift. All professionally made for Quick Shipping.

Antibiotic destroying a bacterium Featured 10 Nov 2003 Print

Antibiotic destroying a bacterium

Antibiotic action on bacterium. Illustration of an antibiotic drug acting on a bacterium, causing it to burst (lysis) and lose its DNA. The rod- shaped bacterial cell is coloured blue; the cell wall has lost its shape due to damage by the drug. Inside the cell is the nuclear envelope (purple structure). This has also ruptured due to drug action, causing the chromosome material (purple strands) containing DNA to burst from the cell. The uncoiling of the DNA prevents the bacterium from dividing before it dies. Antibiotic drugs are used to treat bacterial infections. Penicillin and cephalosporin antibiotics destroy bacterial cells in this way


Blood group test Featured 10 Nov 2003 Print

Blood group test

Blood group test. Pipette being used to add serum containing blood group A antibodies to samples of blood being tested for their blood group. The A antibodies will react with any A antigens on the red blood cells in the samples, making the cells stick together (agglutinate). Blood is grouped by the antigens it has. The major blood groups are A, B, AB and O. Blood is further classified as Rhesus (Rh) positive or negative. The group is identified to prevent potentially fatal immune reactions in the patient receiving the blood

© Mauro Fermariello/Science Photo Library