[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fvOak-uqAmo6hTYeboYhV7N9lF8SnrSD3jn4BjY7rVxM":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":13,"question":20,"related":21,"source":25,"type":26},[],"2023-06-18 14:52:44",69500358,[8,9,10,11,12],"Arginine","Aspartic acid","Glutamic acid","Valine","Lysine",{"count":14,"courseId":15,"courseImg":16,"courseName":17,"workId":18,"workName":19},19,"a10429213f2a2f21d2f1df7a88536467","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffec059a1b96d98754a0e99b8dc5d88a5.jpg","生物化学","79184958fd3245a6ad69bf3c7866c0eb","选择题","2. The oxygen carrier of muscle is the globular protein myoglobin. Which of the following amino acids is highly likely to be localized within the interior of the molecule",[22,27,37,46,56,66,75,81,90,100],{"answer":23,"createTime":5,"id":6,"options":24,"question":20,"source":25,"type":26},[],[8,9,10,11,12],"v1",1,{"answer":28,"createTime":5,"id":29,"options":30,"question":36,"source":25,"type":26},[],69500359,[31,32,33,34,35],"Protein","Fat","Carbohydrate","amino acid","all four","When using Biuret's test, which macromolecule will produce a positive reaction (colour change from blue to lilac)",{"answer":38,"createTime":5,"id":39,"options":40,"question":45,"source":25,"type":26},[],69500360,[41,42,43,44,11],"Alanine","Glycine","Histidine","Leucine","3.A 6-year-old African American girl with speech delay is found to have a large, abnormal peak when blood amino acids are measured. The abnormal amino acid migrates toward the cathode, indicating a positively charged side group in addition to its carboxyl and amino groups. Which of the following amino acids is most probable",{"answer":47,"createTime":5,"id":48,"options":49,"question":55,"source":25,"type":26},[],69500361,[50,51,52,53,54],"Protein folding is assisted by intervention of specialized auxiliary proteins called chaperone","Protein folding tends to be modular, with areas of local secondary structure forming first, then coalescing into a molten globule","Protein folding is driven first and foremost by the thermodynamics of the water molecules surrounding the nascent polypeptide","The formation of S-S bond in a mature protein is facilitated by the enzyme protein disulfide isomerase","Only a few unusual proteins, such as collagen, require posttranslational processing by partial proteolysis to attain their mature conformation","Select the one of the following statements that is NOT CORRECT",{"answer":57,"createTime":5,"id":58,"options":59,"question":65,"source":25,"type":26},[],69500362,[60,61,62,63,64],"L-α-amino acids","D-α-amino acids","L-β-amino acids","D-β-amino acids","L- and D-β-amino acids","Proteins are large biological molecules consist of which of the following amino acids",{"answer":67,"createTime":5,"id":68,"options":69,"question":74,"source":25,"type":26},[],69500363,[70,71,72,73],"5","20","35","64","How many amino acids are involved in making proteins in humans",{"answer":76,"createTime":5,"id":77,"options":78,"question":80,"source":25,"type":26},[],69500364,[79,79,79,79],"如图","Consider the amino acid shown below. The configuration about which atom will determine whether the amino acid is in the D or L configuration?\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1527a25e8b43d40320a7d14c46b952e9.jpg\">",{"answer":82,"createTime":5,"id":83,"options":84,"question":55,"source":25,"type":26},[],69500365,[85,86,87,88,89],"Ion-exchange chromatograph separates proteins based upon the sign and magnitude of their charge at a given PH","Two-dimensional gel electrophoresis separates proteins first on the basis of their PI values and second on their charge to mass ratio using SDS","Affinity chromatograph exploits the selectivity of protein-ligand interactions to isolate a specific protein from a complex mixture","Many recombinant proteins are expressed with an additional domain fused to their N-or C-terminals. One common component of these fusion domains is a ligand binding site designed expressly to facilitate purification by affinity chromatography","Tandem mass spectrometry can analyze peptides derived from complex protein mixtures without their prior separation",{"answer":91,"createTime":5,"id":92,"options":93,"question":99,"source":25,"type":26},[],69500366,[94,95,96,97,98],"Phosphoester bond","phosphodiester bond","Peptide bond","Glycosidic bond","Thioester bond","The covalent bond formed between the carboxyl group of one amino acid and the amino group of another amino acid is called______",{"answer":101,"createTime":5,"id":102,"options":103,"question":109,"source":25,"type":26},[],69500367,[104,105,106,107,108],"An amino acid","A dipeptide","A tripeptide","A tetrapeptide","A pentapeptide","Consider the following structure: \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe2e64d0970bec1e27b887b85b33c6730.jpg\">This structure is best described as which of the following"]