Science+of+poisons
51Type II topoisomerase — Type II topoisomerases cut both strands of the DNA helix simultaneously in order to change the linking number of the molecule. FunctionOnce cut, the ends of the DNA are separated, and a second DNA duplex is passed through the break. Following… …
52Enzyme — Biocatalyst redirects here. For the use of natural catalysts in organic chemistry, see Biocatalysis. Human glyoxalase I. Two zinc ions that are needed for the enzyme to catalyze its reaction are shown as purp …
53Friedrich Accum — Portrait par James Thomson. Friedrich Christian Accum ou Frederick Accum, né à Bückeburg le 29 mars 1769 et mort à Berlin le 28 juin 1838, est un chimiste allemand. Ses principaux apports ont concerné l …
54magic — /maj ik/, n. 1. the art of producing illusions as entertainment by the use of sleight of hand, deceptive devices, etc.; legerdemain; conjuring: to pull a rabbit out of a hat by magic. 2. the art of producing a desired effect or result through the …
55Asimov — Isaac Asimov Isaac Asimov Asimov est considéré par certains comme l « empereur de la science fiction[1 …
56Paul French — Isaac Asimov Isaac Asimov Asimov est considéré par certains comme l « empereur de la science fiction[1 …
57Toxicologie — La toxicologie est la science étudiant les substances toxiques (ou poisons) ; leur étiologie (origine) ; les circonstances de leur contact avec l organisme, les effets de l exposition d un organisme (ou d un groupe d organismes) à des… …
58Plant defense against herbivory — Poison ivy produces urushiol to protect the plant from herbivores. In humans this chemical produces an allergic skin rash, known as urushiol induced contact dermatitis …
59Arsenic — Cet article possède un paronyme, voir : Ärsenik. Arsenic …
60Chemical warfare — For other uses, see Chemical warfare (disambiguation). This article forms part of the series Chemical agents Lethal agents Blood agents Cyanogen chloride (CK) …
