I was reading about this in Biology, and I am very good at Biology, but I have no clue what this is. It is some kind of chemical that is used in certain products?
206496
Amino acids are organic molecules with amino groups (-NH2) and acidic groups (-COOH).  When the amino group (-NH2) of one amino acid reacts with the acidic group (-COOH) of another, the bond is called a "peptide" bond (IIRC.)\n\nIf you link a small number of amino acids in this way, the product is often just called a "peptide".  The better term is "oligopeptide", as "oligo" comes from Greek, meaning "few".\n\nReally long peptides are called polypeptides or proteins.  ("poly" comes from Greek, too, meaning "many")\n\nSome proteins have different polypeptides that stick together, held by weaker forces such as electrostatic attraction.\n\nDoes that help?
636146
I am ashamed to say I do not think of it so deeply, but you bring up wonderful points.  It surely is an amazing thing, the human body and the way it works.  I love not only the question but you left us with specifics so we did not just have to uhm blood good... I now have a little more knowledge to add to my trivial pursuit portfolio!!  hehehehe
418250
Normally the particles (let us call them solutes for now) move from where they are more in concentration to where there are less solute particles in solution. This is just diffusion. This is some kind of standard stuff ALL THINGS MOVE FROM HEIGHTS to DEPTHS!! no more energy is required for this.\n\nBUT there are many more things in life which need to go against this principle and this is where the cell needs to spend energy ATP may be.. So when some particles are actively transported what it means is that energy is spent to do something against the concentration gradient. If it wants to bring more K+ ions into a cell which already has heaps when compared to the outside it needs to spend energy, There are many reasons why it may want to do it.. ... may be it wants to accumulate stuff for later (store glucose)..\n\n ..\nhope that helps,,,
279695
antibiotics?\n\nAntibiotics represent a group of the industrially important compounds used for the treatment of human and animal infectious diseases. With the rapid evolution of the multi-resistant pathogens the need for new antibiotics is growing. Among the several thousand of different antibiotics discovered so far, more than two thirds are produced by bacteria. With today's knowledge of the genetics and biochemistry of the bacterial antibiotic synthesis it becomes possible to make new antibiotics with improved properties via genetic engineering of the producing organisms. We are studying antibiotic biosynthesis and its regulation in Streptomyces  bacteria, both for the purpose of improving the production levels and with the aim of creating new antibiotics. In particular, we are taking advantage of the nystatin biosynthetic genes, which we have recently cloned from the Gram-positive bacterium Streptomyces noursei . Our goal is to study the process of nystatin biosynthesis in this bacterium, and to create new antifungal antibiotics.\n\n\nAntibiotics are produced industrially by a process of fermentation, where the source microorganism is grown in large containers (100-150,000 litres or more) containing a liquid growth medium. Oxygen concentration, temperature, pH and nutrient levels must be optimal, and are closely monitored and adjusted if necessary. As antibiotics are secondary metabolites, the population size must be controlled very carefully to ensure that maximum yield is obtained before the cells die. Once the process is complete, the antibiotic must be extracted and purified to a crystalline product. This is simpler to achieve if the antibiotic is soluble in organic solvent. Otherwise it must first be removed by ion exchange, adsorption or chemical precipitation.
669433
Biotechnology is a technology based on biology, especially when used in agriculture, food science, and medicine.\n\nOf the many different definitions available, the one formulated by the UN Convention on Biological Diversity is one of the broadest:\n\n"Biotechnology means any technological application that uses biological systems, living organisms, or derivatives thereof, to make or modify products or processes for specific use." (Article 2. Use of Terms) \nBiotechnology can also be defined as the manipulation of organisms to do practical things and to provide useful products.\n\nOne section of biotechnology is the directed use of organisms for the manufacture of organic products (examples include beer, milk products, and skin). Naturally present bacteria are utilized by the mining industry in bioleaching. Biotechnology is also used to recycle, treat waste, clean up sites contaminated by industrial activities (bioremediation), and produce biological weapons.
108337
It is selected media for growth of different micro organisms.It is acidic in nature.You can buy it from some pharmacuitial company.(depends where r u on globe)\n(Pick ur best answer)
223478
I'm not sure it's a known thing. Also it seems to be a construct like a ribosome.
243819
It's used to treat ringworm fungus of the skin/scalp.\n(Usually contracted from animals).
182209
500 years ago, Paracelsus, an early chemist, doctor and alchemist (which, at the time, was still a going concern) wrote (in German):\n\n"Alle Ding' sind Gift und nichts ohn' Gift; allein die Dosis macht, das ein Ding kein Gift ist."\n\nThis means:\n"All things are poison and nothing (is) without poison; only the dose makes that a thing is no poison." \n\nWhatever science may think of some of his stranger pursuits, the wisdom of this statement is undisputable.  Every substance will kill you if you ingest enough of it, even water.  (And, no, I'm not talking about drowning.)\n\nAny substance that can damage a DNA molecule can be a carcinogen.  This includes nearly every molecule, again, including water.  The only completely non-carcinogenic substances I can think of would be the noble gasses (helium, neon, etc.)  They are chemically inert and do not readily react with much of anything.  Even that's not completely safe because radon is a radioactive noble gas (so easily a carcinogen) and some of the others probably have radioactive isotopes.\n\nIt's worth noting that despite the earlier "answer", natural things are full of carcinogens.  Plants are filled with pesticides of their own creation.  Why not?  Plants don't like being eaten any more than you would.  Natural pesticides are simply the result of their evolution.  These pesticides are designed to, yes, KILL animals.  That includes you.  Of course, we don't eat the ones that have enough of those chemicals to kill us in the short term, and only a few of our foods (such as, I'm told, Okra, which supposedly has the highest levels of natural pesticides of any food regularly eaten by humans) have enough pesticides to be really worth avoiding.  Nonetheless, the chemicals aren't intended to be good for you and some of them do indeed contribute to cancer.\n\nFunny irony:  Plants grown "naturally" or "organically" have more natural pesticides than those grown by supposedly bad, unnatural modern techniques.  "Organically" grown plants are exposed to more insects, and the plants respond by pumping up excess carcinogens and other poisons into their tissues.  Plants protected by artificial, external pesticides have less trouble with pests, so don't produce as many poisons.  Guess what, you cannot wash off internal, natural pesticides like you can the artificial ones humans add.\n\nAgain, the dosage of these natural pesticides is still usually too small for concern.  Still, if you want my advice, avoid overpriced "organic" foods.\n\nRemember the Alar scare from quite a few years back?  Everyone worried about the Alar on apples being carcinogenic.  Everyone ignoring the plain fact that the supposedly dangerous aspect of Alar was that it broke down into unsymmetrical dimethylhydrazine (UDMH).  UDMH is found in much higher doses in supermarket mushrooms than found on treated apples.  The treated apples were banned, the mushrooms remain on the shelves to this day, protected by the strange and irrational sense of safety the phrase "all natural" gives to people.\n\nMind you, I'm not saying the mushrooms are dangerous.  They aren't.  Neither were the treated apples.  The dose makes the poison and neither has enough to worry about.  The news media likes scare stories, so it prints them without much regard for the facts of the issues.
552184
I would say 'C'.  Pigments are used to absorb light.  A and B are two things I've never come across in Bio (not yet at least) and they definately sound unrelated, and farmiliarly like a Blue Man Group song.  Sodium-Potassium pumps are used in ionic transport; such as that in the creation of ATP, so D doesn't exactly make sense either.  Neurotransmitters... well they're just chemicals to relay/amplify electrical messengers, and they're things like amino acids and peptides.\n\nThere's my reasoning.  Hope I helped a little... :*)
414858
I believe the answer is B monounsaturated fatty acid. Here is a link that will explain it.\n\nhttp://www.oralchelation.com/technical/fat1.htm
132394
It can refer to several things, pick the one you want:\nhttp://en.wikipedia.org/wiki/TCA\n\nI think it is most likely this one:\nTrichloroacetic acid (also known as trichloroethanoic acid) is an analogue of acetic acid in which the three hydrogen atoms of the methyl group have all been replaced by chlorine atoms.\n\nIt is prepared by the reaction of chlorine with acetic acid in the presence of a suitable catalyst.\n\nCH3COOH + 3Cl2 → CCl3COOH + 3HCl \nIt is widely used in biochemistry for the precipitation of macromolecules such as proteins, DNA and RNA. Its sodium salt is used as a weedkiller
53618
in the area of chemistry you can research on discovering new chemicals usages in industries, or one new idea could be you analyze each chemical as maximum as you can and prepare a guide of prevantive measures against each chemical........... In the Biology area you can research on Nail's(fingre or foot) system in any living body..
361966
It is a molecule that encodes the information used to construct living organisms.
112562
oneguyin2005 has the right idea, but the wrong terminology. The purpose of such labeling is to use a radioactive isotope of the given element in the biological system. (or else the other atom would have differnet biological activity.) You can trace where the radioactive atom is, relative to the others, and it can help you elucidate structure
402714
Alright, from what I know, ammonia is an important compound to many living things because it acts as a source of nitrogen. Although there is nitrogen in the air, there are very few organisms that can use it. Nitrogen from ammonia can be used to form amino acids - which are the building blocks of protein.\n\nNote: Most living things have proteins in them. Not all living things are made from protein. Just thought I would say...
15003
A biomolecule is a chemical compound that naturally occurs in living organisms. Biomolecules consist primarily of carbon and hydrogen, along with nitrogen, oxygen, phosphorus and sulfur. Other elements sometimes are incorporated but these are much less common.\n\nBiomolecules are necessary for the existence of all known forms of life. For example, humans possess skin and hair. The main component of hair is keratin, an agglomeration of proteins which are themselves polymers built from amino acids. Amino acids are some of the most important building blocks used, in nature, to construct larger molecules. Another type of building block is the nucleotides, each of which consists of three components: either a purine or pyrimidine base, a pentose sugar and a phosphate group. These nucleotides, mainly, form the nucleic acids.\n\nBesides the polymeric biomolecules, numerous small organic molecules are absorbed or synthesised by living systems. Many biomolecules may be useful or important drugs.