QUESTION 2 The melting point of palmitic acid is the melting point of lauric acid, and the solubility of palmitic acid is the solubility of lauric acid. less than, less than greater than; less than equal to; less than O less than greater than greater than, greater than 2o o OO
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Q: QUESTION 19 The tripeptide glycylarginylglutamate contains four ionizable groups with pKas of 2.1,…
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Q: QUESTION 14 Match pairs of terms together that have the same value b. 1 micromole 1 μmole/l 1 mM 1…
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Q: QUESTION 24 Alcohol dehydrogenase (ADH), catalyzes a reaction where primary alcohol is converted an…
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- Question 5 of 40 Side-by-Side Identify the charge states for aspartic acid (Asp), leucine (Leu) and Lysine (Lys) at pH 1, 7 and 12. Then calculate the isoelectric point (pI). Step 7: Determine the appropriate calculation for the pl of lysine. For lysine, the pKa of the amine is 8.95, while the pKa of the carboxylic acid is 2.18 and the pK, of the amine in the Strategy: First identify the sidechain on each amino acid. Then determine whether the side chain is acidic, basic or side chain is 10.53. neutral. Determine whether each functional group is Calculate the pI of lysine. charged or not at the pH indicated. Calculate the (pI) from the pKa values of the functional groups. pI MacBook ProQuestion 1 and are glycosamines linked to three-carbon acids at the C-1 or C-3 positions, and components of thepolysaccharides of cell higher organisms and bacterial cell walls. Glucosides; galactosides Muramic acid; neuraminic acid O Gluconic acid; glucuronic acid O Sorbitol; ribitolQuestion 10 Which of the following statements is incorrect? O In delta notation of fatty acid nomenclature, the numbering starts at the a-carbon from the carboxylic acid end. O Glycerophospholipids are the most abundant lipids in cellular membranes. O Hormones, such as testosterone, estradiol and progesterone are examples of steroidal lipids. O The rigidity of a saturated fatty acid is based on the strong bonding between sp3-hybridized carbon chains.
- Phosphorylated molecules with high _____________ values of hydrolysis have large phosphoryl group transfer potentials.Question 15 About tryptophan: A None of the above statements is right. B It exhibits two carboxylic acid functions and one amide function. |C It is a cyclic amino acid, that strongly ab- sorbs light at 280 nm. D Its 3-letter code is Try and its one-letter code is T. E It is positively charged at pH 12.QUESTION 33 Bonus: An a-D-aldopentofuranose has how many chiral carbons
- BIOCHEMISTRY Why glycogen in muscle cells cannot be stained blue-black by iodine solution?Question 11 Observe the titration curve below and choose the CORRECT statement. 12 - pK2 10 8- PK, 2. 0.5 1.0 1.5 Equivalents of OHO 2.0 O Two of these are correct O At point A, both acidic groups are protonated O At point A, both acidic groups are deprotonated O Cis the end point of titration for the most acidic group O B is the end point of titration for the most acidic group « Previous N. LG rotein d (basic)Rgoup Jacidic) Rgroup ged RgroupQUESTION 26 The best description of a glycoprotein is only amino acids polymerized in a chain amino acid chains with covalently bound heme groups O amino acid chains and bound carbohydrate O a protein with a covalently bound lipid Oa polysaccharide with a fatty acid modification
- QUESTION 1 Which of the following concepts in column A best fits the concept in column B. p-Nitrophenyl a-D-Glucoside Action of intracellular a-GLUCOSIDASE + NaHCO3 Boiling cells Tris-pH 5.0 A. Substance that act as molecular mimic of a maltose molecule B. Develops TT-Nitrophenyl into a yellow colour reagent for measurement at 400nm c. Breaks the a-linkages of p-Nitrophenyl a-D-Glucoside, leaving p-Nitrophenyl and a glucose molecule D. Allows transport of p-Nitrophenyl a-D-Glucoside across the membrane E. Stop the reaction and release internal p-NitrophenylQuestion 15 gal(a1-6)gal(a1-6)glc(a1-2B)fru. Which of the complete IUPAC of this tetrasaccharide? a-D-galactopyranosyl-(1–6)- a-D-galactopyranosyl-(1-6)- a-D-glucopyranosyl-(1-2)-B-fructofuranose a-D-galactopyranosyl-(1-6)- a-D-galactopyranosyl-(1-6)- a-D-glucopyranosyl-(1-2)-B-fructofuranoside O a-D-galactopyranosyl-(1-6)-B-D-galactopyranosyl-(1–6)- a-D-glucopyranosyl-(1-2)-8-fructofuranoside O a-D-galactopyranosyl-(1-6)-B-D-galactopyranosyl-(1–6)- a-D-glucopyranosyl-(1-2)-8-fructofuranoseQuestion 4 If 32p – labeled (radioactive phosphate) inorganic phosphate were introduced to erythrocytes undergoing glycolysis which of the following molecules would you expect to detect 32 p in Glycolytic intermediates? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Fructose 1-6 bisphosphate b 3-Phosphoglyceraldehyde Dihydroxyacetone phosphate d 2-Phosphoglycerate e 1-3 bisphosphoglycerate f Phosphoenolpyruvate 3-Phosphoglycerate h Pyruvate i None of the above