Sets (25)
Classes (0)
Heavy Metals definitions
| # | Definition | Sets |
|---|---|---|
| 1 | metallic elements with a high density that are toxic to organisms at low concentrations | 115 sets |
| 2 | mercury, lead, cadmium and nickel-highly toxic in very small quantities; can be fatal and bioaccumulate in environment-have cumulative effects in humans. | 21 sets |
| 3 | examples causing water pollution are lead, mercury, cadmium, and arsenic | 19 sets |
| 4 | bioaccumulate in animal tissues | 11 sets |
| 5 | irreversibly bind with many enzymes | 11 sets |
| 6 | water soluble forms of certain metals (lead, mercury) which are harmful at low levels, and they stay in the fatty tissue of animals | 10 sets |
| 7 | often deposited with natural sediments at bottom of stream channels | 10 sets |
| 8 | dimercaprol/penicillamine | 9 sets |
| 9 | metallic elements with a high density that are toxic to organisms at low concentrations. | 8 sets |
| 10 | denature proteins | 8 sets |
| 11 | metals with relatively high atomic weight | 7 sets |
| 12 | mineral ions such as mercury and lead, so called because they are of relatively high atomic weight. many heavy metals are poisonous. | 7 sets |
| 13 | chapter 15: metals with relatively high atomic weight. pose health hazards to people and ecosystems include mercury, lead, cadmium, nickel, gold, platinum, silver, bismuth, arsenic, selenium, vanadium, chromium, and thallium. [myk] | 7 sets |
| 14 | refers to a number of metals, including lead, mercury, arsenic, and silver; have a relativelly high atomic number and are often toxic even at relatively low concentrations [e°, bk] | 7 sets |
| 15 | silver, mercury, copper. mechanisms of action- combines with sulfhydryl groups of proteins to denature proteins | 6 sets |
| 16 | kill nerve cells | 6 sets |
| 17 | dangerous pollutants; include lead, nickel, cadmium, mercury | 5 sets |
| 18 | high density, metallic elements that are toxic even at low concentrations. | 5 sets |
| 19 | mercury, cadmium, lead, chromium, nickel, copper, zinc | 5 sets |
| 20 | metallic elements with a high density that are toxic to organisms at low concentrations (e. lead, and mercury) | 5 sets |
| 21 | interfere with microbial metabolism | 5 sets |
| 22 | lead, mercury, cadmium, and arsenic | 5 sets |
| 23 | they are often toxic at relatively low concentrations, causes enviro problems. (high atomic #). ex: mercury, arsenic, silver, lead | 4 sets |
| 24 | silver nitrate, mercurochrome | 4 sets |
| 25 | oligodynamic action: small concentration, big effect. high affinity of proteins and metallic ions. the ions accumulate within the cell and bind to essential proteins and the proteins precipitate out. | 4 sets |
| 26 | -interfere with s groups in proteins -toxic, less effective -1% solution agno3- ophthalmic gonorrhoea -silver sulfadiazine - treats burns -cuso4 - algicide | 4 sets |
| 27 | mercury, lead | 4 sets |
| 28 | are located in the central portion of the table | 4 sets |
| 29 | silver, copper, zinc. believed to act by combining with cellular proteins. | 4 sets |
| 30 | mercury, copper, silver | 4 sets |
| 31 | toxic metals such as lead, mercury, copper, or cadmium | 3 sets |
| 32 | -silver,mercury, and copper -oligodynamic action-very small amounts have an antimicrobial affect -silver nitrate- eye drops for newborns in cases where mother has gonorrhea | 3 sets |
| 33 | - heavy metals used as cofactors in some enzymatic processes - a proper balance of heavy metals must be maintained in the body * too little and enzymes can not perform function * too much --> toxic - transport and storage proteins control balance of heavy metals - mutations in genes that code for these proteins result in imbalance of heavy metals | 3 sets |
| 34 | gold, silver, mercury, and copper target proteins | 3 sets |
| 35 | when metal ions combine with -sh groups in cellular proteins denaturation occurs silver and copper | 3 sets |
| 36 | mercury and lead | 3 sets |
| 37 | kills vegetative cells by binding to proteins. (halts metabolism) | 3 sets |
| 38 | refers to a number of metals that have a relatively high atomic number, often toxic at low concentrations | 3 sets |
| 39 | water-soluble forms of certain metals *house-hold plumbing *cause illness | 3 sets |
| 40 | lead, mercury, cadmium, arsenic, and household chemicals | 3 sets |
| 41 | arsenic, silver, mercury, copper and zinc | 2 sets |
| 42 | chemical(s) used in sterilization that bind(s) to sulfhydryl groups, blocking enzyme activity | 2 sets |
| 43 | arsenic, cercury, lead and iron, toxic effect | 2 sets |
| 44 | chemical methods of sterilization that act by blocking enzyme activity | 2 sets |
| 45 | are metals with high atomic masses (and densities). they are normally toxic to humans. examples are mercury, lead, cadmium, chromium and arsenic. | 2 sets |
| 46 | displace proper minerals- lead and mercury are very toxic especially for growing child | 2 sets |
| 47 | damage proteins but have a variable effect | 2 sets |
| 48 | chelators | 2 sets |
| 49 | silver, mercury, copper, gold, arsenic • only mercury and silver have germicidal significance • mechanism of action: ions combine with sulfhydril groups - protein denaturation • 1% silver nitrate - antispetic • copper sulfate - controls algal growth can be toxic to humans | 2 sets |
| 50 | heavy-metal ions denature proteins low-level bacteriostatic and fungistatic agents 1% silver nitrate to prevent blindness caused by n. gonorrhoeae thimerosal used to preserve vaccines copper controls algal growth | 2 sets |
| 51 | oligodynamic-work fast in trace amounts | 2 sets |
| 52 | silver nitrate silver sulfadiazine binds to enzymes that contain thiols | 2 sets |
| 53 | harm through bioaccumulation | 2 sets |
| 54 | metallic elements with a high density that are toxic to organisms at low concentration | 2 sets |
| 55 | lead, chromium, mercury, arsenic, cadmium, tin, and copper | 2 sets |
| 56 | effective control strategy but usually toxic. they combine with and inactivate proteins. eg. ions of mercury, silver, arsenic, zinc, and copper | 2 sets |
| 57 | mercury, silver, and copper. toxic bc they bind to sulfhydryl groups of proteins. copper sulfate is an algicide. silver nitrate is infant eyes | 2 sets |
| 58 | very reactive with proteins, disrupting enzymes | 2 sets |
| 59 | - mode of action: disrupts cellular proteins and dna synthesis - silver, copper | 2 sets |
| 60 | most populations of bacteria cannot grow close to ___ ____ because the bacteria cannot adapt to it quickly. | 2 sets |
| 61 | metal elements with large atomic mass; components of many toxic substances | 2 sets |
| 62 | metallic elements with a high density that are toxic to orgnaisms at low concentrations; they do not degrade and cannot be destroyed | 2 sets |
| 63 | - displace vitamins and minerals from enzymes - results in inactivation of enzyme | 2 sets |
| 64 | chemical control denaturation of enzymes silver nitrate, silver sulfadiazine used as a topical cream on burns | 2 sets |
| 65 | arsenic, cadmium, lead, mercury | 2 sets |
| 66 | not used much anymore, zinc still used in some antibiotic surface treatments. | 2 sets |
| 67 | one of the three categories of toxic waste that includes uranium, plutonium, lead, and mercury. these waste are a problem because they never stop being toxic and because they cannot be destroyed. | 2 sets |
| 68 | (ag, hg, cu, zn) most too toxic for medical use; silver sulfadiazine used in topical dressings to prevent infections of burns | 2 sets |
| 69 | metals which have no known vital or beneficial effect on organisms; their accumulation over in the bodies of mammals can cause serious illness | 2 sets |
| 70 | ag, cu, hg, zn, pb | 2 sets |
| 71 | toxic chemicals which come from mining, industry, & landfills (e.g. lead, mercury, and arsenic) | 2 sets |
| 72 | -solutions of silver and mercury kill vegetative cells in low concentrations by inactivating proteins -low level -merthiolate, silver nitrate, silver | 2 sets |
| 73 | examples are copper and zinc that are added to hog feed to stimulate rapid growth of animals - unfortunately - much of it ends up in waste and over time these metals accumulate in fields and make them toxic to plant growth | 2 sets |
| 74 | ...various forms of metalic elements mercury, silver, gold, copper, arsenic and zinc have been used for centuries. called heavy metals because of their relatively high atomic weight. only preparations containing mercury and silver still have any significance as germicides. | 2 sets |
| 75 | do not degrade and they cannot be destroyed. ex.) mercury (hg), lead (pb) and cadmium (cd) | 2 sets |
| 76 | h20 forms certain metals *house hold plumbing *cause illness | 2 sets |
| 77 | oligodynamic action; silver and mercury kill vegetative cells | 2 sets |
| 78 | used in previous years but are pushed aside for less toxic methods | 2 sets |
| 79 | denatures enzymes and other proteins, silver nitrate, mercuochrome, copper sulfate | 2 sets |
| 80 | dimercaprol | 2 sets |
| 81 | metals with high atomic weight | 2 sets |
| 82 | are stored in fatty body tissue (ex: arsenic, cadmium, and lead) | 2 sets |
| 83 | chelating agents | 2 sets |
| 84 | solutions of silver and mercury kill vegetative cells in low concentrations by inactivating proteins | 2 sets |
| 85 | metals w/ toxic affects. ex= lead and mercury | 2 sets |
| 86 | -high atomic weight element -ag, hg, cu, zn -damage proteins -variable effect | 2 sets |
| 87 | dimercaprol/ penicillamine | 2 sets |
| 88 | are metallic elements with a high density that are toxic to organisms at low concentrations | 2 sets |
| 89 | - tendency to accumulate in select tissues - toxic in even low concentrations | 2 sets |
| 90 | a group of antimicrobial agents that include mercury, silver, arsenic, zinc, copper. works by inactivating proteins by the sulfhydryl groups and precipitating cell proteins. very commonly used in the past but now we use less toxic alternatives. | 2 sets |
| 91 | metallic elements with high atomic weights; (e.g. mercury, chromium, cadmium, arsenic, and lead); can damage living things at low concentrations and tend to accumulate in the food chain. | 2 sets |
| 92 | dangerous pollutants, lead nickel mercury etc. accumulate in bottom sediments in aquatic systems--can stay indefinitely and no problem if left undisturbed but harsh weather, dredging, construction, even poll cleanup can release them | 2 sets |
| 93 | heavy metals are metallic elements with a high density that are toxic to organisms at low concentrations. within the biosphere, they do not degrade and cannot be destroyed. | 2 sets |
| 94 | used as a disinfectant; silver, mercury, copper, and zinc; used in germicides; oligodynamic action does not take much, when combined with sulfhydryl (-sh) goups proteins are denatured | 2 sets |
| 95 | protein denaturation | 2 sets |
| 96 | silver nitrate is the best, toxic at small concentrations with multiple targets | 2 sets |
| 97 | are metalic elements with a high density that are toxic to organisms at low concentrations. | 2 sets |
| 98 | low-level bacteriostatic and fungistatic agents that denature proteins. | 2 sets |