| 单词 | hydrogen bond |
| 例句 | In the revised form the phosphate atoms were twisted 45 degrees, thereby allowing a different group of oxygen atoms to form a hydrogen bond. Double Helix 1968-02-27T00:00:00Z The formation of a third hydrogen bond between guanine and cytosine was considered, but rejected because a crystallographic study of guanine hinted that it would be very weak. Double Helix 1968-02-27T00:00:00Z So when a molecule of water has the opportunity to hydrogen bond with something, it will. Why Hair Turns Curly and Frizzy in the Summer, according to Chemistry 2023-08-16T04:00:00Z “I can close my eyes and tell you, ‘Aha, there’s a protein-to-water hydrogen bond that just formed,” he said as the track played out. The sounds of science: What scientists can learn by turning their data into sounds 2023-02-03T05:00:00Z “The position of protons along the hydrogen bond differed only by about 20 picometers,” Guo says—less than half the length of a hydrogen atom itself. In a First, Scientists See How Water Stores Extra Protons 2022-11-23T05:00:00Z Explain why a hydrogen bond between two water molecules is weaker than a hydrogen bond between two hydrogen fluoride molecules. Chemistry 2019-02-14T00:00:00Z The secondary structure consists of the local folding of the polypeptide by hydrogen bond formation; leading to the α helix and β pleated sheet conformations. Biology for AP Courses 2022-06-09T00:00:00Z The attraction between a hydrogen atom with a partial positive charge and an atom with a partial negative charge in another molecule creates a hydrogen bond. Miller & Levine Biology 2018-01-01T00:00:00Z This interaction between two polar molecules is called a hydrogen bond. Environmental Biology 2018-09-06T00:00:00Z For human physiology, the resulting bond is one of the most important formed by water—the hydrogen bond. Anatomy and Physiology 2013-06-19T00:00:00Z That’s the hydrogen bond for you ladies — a chemical reminder that if things are too good to be true, they probably are.” Review | At age 64, debut novelist Bonnie Garmus makes the case for experience 2022-04-05T04:00:00Z The Patent, a copy of which is attached hereto, describes the concept of self-assembly driven by the hydrogen bond in any living organism. Cease and desist : Nature : Nature Research 2017-01-17T05:00:00Z Individually each hydrogen bond is weak - but there are thousands of hydrogen bonds within a single DNA molecule, so the combined effect is an extremely powerful stabilising force. DNA: the 'smartest' molecule in existence? 2013-04-24T16:55:10Z When oxygen and hydrogen bond, for example, the shared electrons are pulled more strongly toward oxygen and thus farther away from hydrogen’s nucleus. Environmental Biology 2018-09-06T00:00:00Z This is analogous to a conserved Tyr in ICL2 of several aminergic receptors that also forms a hydrogen bond with Asp. Molecular signatures of G-protein-coupled receptors 2013-02-13T18:21:29.900Z The enzyme bonds to the substrate with a weaker chemical bond, a hydrogen bond or hydrophobic bond, for example. Enzymes: the little molecules that bake bread 2012-09-28T13:45:00.217Z Research is needed to find alternative approaches for exciting the carbon–hydrogen bond and synthesizing carbon–carbon bonds. Opportunities and challenges for a sustainable energy future 2012-08-15T17:21:52.727Z If His were playing the role of Gln, it would, at least in the ground state, be required to function as a hydrogen bond acceptor and therefore be unprotonated. [Technical Response] Response to Comment on ?The Mechanism for Activation of GTP Hydrolysis on the Ribosome? 2011-07-05T19:25:35.447Z |
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