Describe the four levels of protein in great depth. Desrcibe how protein structure may affect functioning.
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Describe the four levels of protein in great depth.
Desrcibe how protein structure may affect functioning.
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Solved in 3 steps
- H онн C-C-N -C C-N OH +H20 HH H. H N- C-N-C-C OH OH H. R R The chemical reaction illustrated in the accompanying figure H H C-N-C-C OH N- -C OH R R The chemical reaction illustrated in the accompanying figure O links two monomers to form a polymer separates two phospholipids in a bilayer breaks a peptide bond is a hydrolysis reaction in a polysaccharide A piece of DNA has the following sequence: 5' TCATGG 3'. What would be the sequence of the complementary strand? O 3'AGTACC 5' O S' AGTACC 3 O3 CCATGA 5 O s CCATGA 3 Refer to the accompanying figure. RNA at the beginning of the strands are shaded in lighter color. Identify th leading strand in this figure! O a O b HICIR1. (a) The diagram below shows a structure of monosaccharide. CH,OH C=0 H-C-OH НО—С—Н ČH,OH i. Draw the figure above on your answer sheet and indicate ALL chiral carbon(s) in your figure with *. ii. With reference to the number of carbon, the type of carbonyl group and D/L configuration, suggest a name consisting these three properties to describe the monosaccharide shown above. Explain why this monosaccharide is in D- or L- configuration as you suggested in (ii). 111. (b) The diagram below shows different configurations of glucose. CH,OH CHO ÇH,OH H H-C-OH O. OH H. H. OH H. H OH HO-C-H но H-C-OH но H. H-C-OH OH OH ČH,OH A В C i. Which glucose molecule, A or C, is in a configuration? Explain. ii. What is the name of the conversion among different configurations? iii. Glycosaminoglycans (GAG) consist of modified sugars. Give a name of the typical modification to the sugar. What makes GAG ideal for the fluid in the joints? toMatch the structures below with the type or name of the structure. Each match should be used only once. > CH₂ CH- но. CH HO CH₂ CH-0_8 0= CHÍNH CH,O L CH₂0-8- CH2O O=C O–CH,CH O=0 NH3 2−CH2-CH NH3 COO 1. triacylglyceride 2. fatty acid 3. phosphatidyl serine 4. sphingomyelin
- H OH CH2OH D H ОН H الحزن ОН CH2OH ОН H ОН I Which of the following statements correctly describes this structure? (A) The monomer units are bonded by beta 1-2 glycosidic linkage. B The monomer units are bonded by alpha 1-2 glycosidic linkage. The monomer units are bonded by alpha 1-4 glycosidic linkage. The monomer units are bonded by beta 1-4 glycosidic linkage. H CH2OH H ОН H ОН H ОНSphingolipids are considered as phospholipids if: O The polar head group contains a single sugar (carbohydrate) such as glucose All sphingolipids are phospholipids O The polar head group contains a phosphate group The polar head group contains a complex sugar (carbohydrate) containg sialic acidLook at the structure of the disaccharide shown. Name the type of bond which is present. CH,OH H H он но CH2 Он H он H ÓH O B - 1, 4- N-glycosidic linkage O a- 1, 4- O-glycosidic linkage O B- 1, 4-0-glycosidic linkage O a- 1, 6- 0-glycosidic linkage O a- 1, 4- N-glycosidic linkage
- 13. The structures of sphingosine and choline are given below. Draw the condensed structure and block diagram of the sphingolipid formed from these molecules and a molecule of myristic acid. CH3-(CH2)12-CH=CH-CH-OH CH₂ CH3-N-CH2-CH2-OH CH-NH2 sphingosine CH2-OH CH3 choline BLOCK DIAGRAM (draw below) CONDENSED STRUCTURE 14. Which fatty acid below should have the highest melting point? Why? Explain your answer based on structure and forces of attraction. OH O OH TOH OHConsider the structure shown below. он 3 5 CH; O CH, O H CH; O 1 H-N-CH,-C-N-CH;-C-N-CH-C-N-CH-C-N-CH-C-ơ 2 H. H H Fill in the blank with an integer (1, 2, 3, 4, 5..) as shown in the diagram or to represent a specified number. A hydrophilic side chain is indicated by the numberWhich of the following statement/s islare correct about the major structural difference between starch and cellulose? 1 Identity of the monosaccharide unit 2 Gycosidic linkage type 3 Number of monosaccharide units 4 Ring size of the monosaccharide unit present * O 1& 2 O 1 & 4 O 2 & 3 O 2 & 4 O 123 O 234
- Molecule Amino Acid (Glycine R=H) Glycerol a-glucose Molecular Formula Variable C2H5NO2 Structural Formula H CH₂ H H H I I H-C-C I I I H H H H I H I H H L H I H H CH3 0 N-H-- H H Ite H OH H H H H I CIn the following monosaccharide hemiacetal, identify the anomeric carbon atom. Identify the appropriate atom by selecting an atom and assigning it a map number of 1. To do this, rigl mark to enable the Map field before entering a value. H: 122 EXP" CONT. 0 0 H но OH S Br OH [1] ÓH P. -Sphingolipids can contain of all of the following except O Glycerol O more than one choice O phosphate O a mono- or oligosaccharide O sphingosine.