Natural biopolymers are natural polymers produced by living organisms; in other words, they are polymeric biomolecules derived from cells or extracellular material. Biopolymers contain monomeric units that are covalently bonded to form larger structures. Based on the monomer units used and the structure ...
aof defects in the polymers arising from the covalently-bonded 瑕疵在出现从共价保税的聚合物[translate] afjord 海湾[translate] aaccess control 存取控制[translate] aPlease kindly provide CFS (ex-HKG) update shipment schedule, local change & booking form to us. Thanks! 亲切地请提供CFS (前HKG) ...
membrane-electrode unit, and use thereof in fuel cells The present invention relates to a proton-conducting polymer membrane comprising polymers with sulfonic acid groups bonded covalently to aromatic groups and polymers comprising phosphonic acid groups, obtainable by polyme...
Why are they called macromolecules? Macromolecules are basically polymers, long chains of molecular sub-units called monomers. Carbohydrates, proteins and nucleic acids are found as long polymers.Due to their polymeric nature and large size, they are known as macromolecules. Which is a function of ...
Nucleic acids are polymers of: A) nucleotides B) amino acids C) proteins D) sugars In the molecule, DNA (deoxyribonucleic acid), the bases (i.e.,adenine, guanine, cytosine, and thymine) are cyclic molecules that have sp2 hybridization and are...
What are the monomers and Polymers? A receptor protein on the outside of a cell is embedded in the hydrophobic, lipid portion of the cell membrane. Once the protein is folded into its biologically functional structure, what type of amino acid side chain is most likely to be int...
What are three types of organic polymers that are important to life? What do kinases catalyze:? A) addition of phosphate group in a molecule B) removal of a phosphate group from a molecule C) addition of a glucose D) addition of sulfates E) synthesis of DNA ...
Most of the widely applied macromolecular organosilicon compounds are based on Si–O bond, termed siloxane which can be polymerized to form polysiloxanes with different geometrical structures. Hereinafter, organosilicon compounds definition and classification for polymers fire retardancy will be described. ...
What are the monomers and polymers of: carbohydrates, proteins, lipids and nuclei acids? What role did carbohydrates play in chemical evolution and what is your evidence? What about lipids? What are the main types of lipids? What are lipids for? What are monomers of the organic compounds be...
Diazirine covalently bonded to a cosmetic active agent: natural soluble/insoluble polymers, synthetic soluble/insoluble polymers,, sunscreens, mineral part... Disclosed herein are a cosmetic composition comprising at least one diazirine active-agent compound comprising a diazirine covalently bonded to a co...