Question:

Complete the following vocabulary exercise relating to the

Last updated: 8/3/2022

Complete the following vocabulary exercise relating to the

Complete the following vocabulary exercise relating to the level of structure in proteins. Match the words in the left-hand column with the appropriate blank in the sentences in the right-hand column. Primary Secondary Tertiary Quaternary structure is achieved when a protein folds into a compact, three-dimensional shape stabilized by interactions between side-chain R groups of amino acids structure is the sequence of amino acids in a protein. structure is the result of two or more protein subunits assembling to form a larger, biologically active protein complex. structure describes the alpha-helices and beta-sheets that are formed by hydrogen bonding between backbone atoms located near each other in the polypeptide chain.

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Which of the following monosaccharides will form D glucaric acid structure below upon oxidation with nitric acid Cooll I OH HOT H H OH H OH COOH Select one OA OB O C CH OH D Glucitol H OH HOR OD A and B OE A and C H OH CH OH CH 01 L Glucose H OH H OR HO H H OH HOHO HORO D Glucose ON HOT H HU TOH H TOH CH OH
Organic Chemistry
Biomolecules
Which of the following monosaccharides will form D glucaric acid structure below upon oxidation with nitric acid Cooll I OH HOT H H OH H OH COOH Select one OA OB O C CH OH D Glucitol H OH HOR OD A and B OE A and C H OH CH OH CH 01 L Glucose H OH H OR HO H H OH HOHO HORO D Glucose ON HOT H HU TOH H TOH CH OH
1 Which of the following statements about protein secondary structure is not true a Secondary structure gives the location and directionality of the backbone of proteins not R groups b Inter chain interactions between two parts of a polypeptide chain can occur in beta sheets c Protein secondary structure in maintained by hydrogen bonding between R groups and the backbone of proteins d Alpha helices are all right handed
Organic Chemistry
Biomolecules
1 Which of the following statements about protein secondary structure is not true a Secondary structure gives the location and directionality of the backbone of proteins not R groups b Inter chain interactions between two parts of a polypeptide chain can occur in beta sheets c Protein secondary structure in maintained by hydrogen bonding between R groups and the backbone of proteins d Alpha helices are all right handed
8 A 5 solution of cane sugar molecular weight 342 is isotonic with 1 solution of substance X The molecular weight of X is 1 171 2 2 68 4 3 34 2 4 136 2
Organic Chemistry
Biomolecules
8 A 5 solution of cane sugar molecular weight 342 is isotonic with 1 solution of substance X The molecular weight of X is 1 171 2 2 68 4 3 34 2 4 136 2
Oxyhemoglobin is diamagnetic due to electron spin coupling betwee A Low spin Fe and oxygen molecule B High spin Fe and superoxide radical C High spin Fe2 and oxygen molecule D Low spin Fe and superoxide radical
Organic Chemistry
Biomolecules
Oxyhemoglobin is diamagnetic due to electron spin coupling betwee A Low spin Fe and oxygen molecule B High spin Fe and superoxide radical C High spin Fe2 and oxygen molecule D Low spin Fe and superoxide radical
40 Which of the following properties of glucose cannot be explained by its open chain structure i Glucose does not form hydrogen sulphite with NaHSO ii On oxidation with HNO3 glucose gives saccharic acid iii Glucose is found to exist in two different crystalline forms which are named as a and B a ii only b i and iii c ii and iii d i and ii uiches proline from natural a amino acids
Organic Chemistry
Biomolecules
40 Which of the following properties of glucose cannot be explained by its open chain structure i Glucose does not form hydrogen sulphite with NaHSO ii On oxidation with HNO3 glucose gives saccharic acid iii Glucose is found to exist in two different crystalline forms which are named as a and B a ii only b i and iii c ii and iii d i and ii uiches proline from natural a amino acids
1 Which substance has the weakest attractions between its molecules Oformic acid O benzene O castor oil Ophenol Substance Melting Point C castor oil phenol benzene formic acid 9 8 43 2 5 7 8 K
Organic Chemistry
Biomolecules
1 Which substance has the weakest attractions between its molecules Oformic acid O benzene O castor oil Ophenol Substance Melting Point C castor oil phenol benzene formic acid 9 8 43 2 5 7 8 K
Percentage of free space in cubic close packed structure and in body centred structure are respectively 1 48 and 26 2 30 and 26 4 32 and 48 3 26 and 32
Organic Chemistry
Biomolecules
Percentage of free space in cubic close packed structure and in body centred structure are respectively 1 48 and 26 2 30 and 26 4 32 and 48 3 26 and 32
head tail 10 H N CH n COOH mol wt x head tail HOOC CH m OH Product mol wt y If product has mol wt x y 18 then it is ar example of 1 Head to head condensation 2 Head to tail condensation 3 Tail to tail condensation Roth 1 3
Organic Chemistry
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head tail 10 H N CH n COOH mol wt x head tail HOOC CH m OH Product mol wt y If product has mol wt x y 18 then it is ar example of 1 Head to head condensation 2 Head to tail condensation 3 Tail to tail condensation Roth 1 3
example of a motif is the helix turn helix motif which can have DNA binding activity At whic rotein structure does a motif belong one of the above between secondary and tertiary etween tertiary and quaternary Sove quaternary etween primary and secondary
Organic Chemistry
Biomolecules
example of a motif is the helix turn helix motif which can have DNA binding activity At whic rotein structure does a motif belong one of the above between secondary and tertiary etween tertiary and quaternary Sove quaternary etween primary and secondary
13 Consider a compound RR C OH X Identify X if the compound is hemiacetal a CN B NH C OH d OCH 14 Which of the following is product of the reaction of propanal with NH NHC H a imine b Shiff s base c phenylhydrazone d gem diol
Organic Chemistry
Biomolecules
13 Consider a compound RR C OH X Identify X if the compound is hemiacetal a CN B NH C OH d OCH 14 Which of the following is product of the reaction of propanal with NH NHC H a imine b Shiff s base c phenylhydrazone d gem diol