7. Consider the structures shown. For each structure select all that apply. a) pentose, hexose or heptose b) D or L c) ketose or aldose d) a or ẞ e) pyranose or furanose COOM CHACH Structure A Structure C
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- 23. Which is a general term indicating a carbohydrate polymer? A) Glycan B) Polycarb C) Multimer D) Oligosaccharide Please I need the solution in 10 minutes 24. O-linked glycans are attached to proteins through the side chain of all of the following EXCEPT A) Serine B) Threonine C) Glutamate D) Tyrosine 25. N-linked glycans are attached to proteins through N-acetylglucosamine or N- acetyl galactosamine to the amide side chain of A) Asparagine B) Histidine C) Glutamine D) Arginine 26. Maltose has a (1-4) a linkage between glucose and A) Glucose B) Mannose C) Xylulose D) Galactose 27. Pentoses and hexoses can form stable ring structures by internal formation. A) Hemiketal B) Hemianionic C) Hemicationic D) Hemiacetal 28. Saturated fatty acids are different to unsaturated fatty acids because they A) Have an even number of carbon atoms B) Have short hydrophobic tails C) Exhibit free rotation about the carbon-carbon bonds in the hydrocarbon tail D) Have no C-C double bondsSelect the term in column B which best matches the description in column A. There are more terms then needed. Column A Column B 1. The pentose sugar found in DNA. a) Cis fatty acid b) Trans fatty acid c) Coenzyme d) Cofacipr 2. Commonly referred to as "insoluble fiber". 3. Considered to be an amphipathic molecule. 4. A molecule with the formula C18H3602 is probably a e) Phospholipid 5. Bond created during the formation of the primary structure of a protein. ) Glycogen 6. A non-protein organic molecule needed for proper enzyme functioning. g) Cellulose 7. Pyrimidine base found only in RNA. h) Galactose i) Fructose 8. Increasing the number of these molecules in the cell membrane would increase the permeability of the cell membrane. i) Thymine k) Uracil 9. Bond which connects nucleotide monomers together. 1) Fatty acid m) Disaccharide n) Peptide bond o) A-Helix p) B-Pleated Sheet q) Ribose r) Deoxyribose 10.Draw the following Lipids in: A) Condensed (detailed) Structure, B) its Block Diagram. C) Show/Indicate the type of linkages per structure (put an arrow). 5) Glycosphingolipid/Sphingoglycolipid (use sphingosine, stearic acid, and D-galactose);
- 18. Which of the following characteristics are found in the class of C20 carboxylic acids called prostaglandins? a) A five membered ring b) One or more double bonds c) Several oxygen containing groups d) Two of the above e) All of these choicesBriefly describe the structural differences for each pair listed: A) Glycogen and Cellulose B) Lactose and Sucrose2. Calculate the pI of the following primary structure of protein A) Lys- Gly- Ala- Gly B) Lys- Gly-Ala-Glu C) His- Gly- Ala- Glu D) Glu- Gly- Ala -Glu E) Gln-Gly-Ala-Lys
- Consider each of the following disaccharides: a) Label the acetal and hemiacetal in each disaccharide. b) Number the carbons in each of their monosaccharide rings. c) Classify the glycosidic linkage as α or β and use numbers to designate its location. d) Draw the Fishcher projections of the monosaccharides formed when each of thedisaccharides is hydrolyzed? e) Draw the chair conformation of each monosaccharide, where applicable.1. Identify the encircled functional group (hydroxyl, carbonyl, amino, carboxyl). HO HO a) c) =6 H3C НО g H3C eo HU H3C HQ S penicillin Qo O pyruvate CH CH OH Cholesterol Epinephrine CH3 NH O N CH3 CH3 b) f d) CH3 CH₂ CH₂ CH3 CH CH₂ CH CH3 OH NH₂ H H-C-OH HO-C-H H-C-OH H-C-OH CH₂OHDraw the following Lipids in: A) Condensed (detailed) Structure, B) its Block Diagram.C) Show/Indicate the type of linkages per structure (put an arrow). 2) Triacylglycerol (use glycerol, 3 fatty acids consisting of stearic acid, palmitic acid, and linolenic acid);
- Draw the following Lipids in: A) Condensed (detailed) Structure, B) its Block Diagram.C) Show/Indicate the type of linkages per structure (put an arrow). 3) Glycerophospholipid (use glycerol, 2 stearic acid, phosphate, and serine for its amino alcohol)1. ) In one (1) sentence point out a key functional similarity and difference in each of the pair of terms a) Cellulose and chitin b) α(alpha)- and β(beta)- anomers c) glycosidic and ester bonds d) triacylglycerols and glycerophospholipids e) linoleic and linolenic acidsFor each of the following amino acids: 1) describe what the important functional group of the amino acid side chain is, 2) identify the charge of the side chain, 3) name another component in the structure that the amino acid might interact with, and 4) indicate how the interaction with the component listed in 3) might be occurring (i.e., electrostatic interaction, hydrogen bond, hydrophobic interaction, etc.) a) Asp153 b) Arg166 c) Lys167