Which of the following acts as lipid soluble radical trapping antioxidant? A. Ascorbate B. Uric acid C. Polyphenol D. Ubiquinone
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Which of the following acts as lipid soluble radical trapping antioxidant?
A. Ascorbate
B. Uric acid
C. Polyphenol
D. Ubiquinone
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- How many grams of sodium chloride is required to render 80ml of 2% solution of ascorbic acid isotonic with blood. using The sodium chloride equivalent of drug = 0.18 Select one: O a. All of the answer is wrong. Ob 0.256 gm O c. 0.576 gm Od 0.432 gmWhich of the following polypeptides CANNOT be phosphorylated? a. O b. O C. O d. O e. -LIYLIA- -ASILD- -ILTALD- -DLTYLA- -NDLALP-Scenario You have a polypeptide chain that is linked by disulfide bond. If beta-mercaptoethanol is applied, there is no disulfide bond anymore. What has happened to the polypeptide chain after the detergent abovehas been applied. Does it increase, decrease or remain the same?
- 6. Which of the following acts as lipid-soluble radical trapping antioxidants? A. Ascorbate B. Uric acid C. Polyphenols D. UbiquinoneWhich of the following amino acid residues cannot play a role in acid-base catalysis? a. Aspartate Ob. Phenylalanine c. Glutamate Od. HistidineThe role of Zn2+ in catalysis is usually to: a. Stabilize a (-) charge in the transition state O b. Act as a nucleophile Oc. Act as a base Od. Destabilize a (-) charge in the transition state
- In slides stained with hematoxylin and eosin, the section 2. appears very pink with pale-reddish brown nuclei. Of the following, the most appropriate action is to a. Restain the sections for a longer time in hematoxylin b. Discard and replace the ammonia water c. Replace the hematoxylin with fresh solution d. Change all solutions and restain 13DIY Glue State the materials that use to make it. Show the mechanisms of the reaction that occur.Sphingolipids do I. contain a glycerol core with a phosphocholine headgroup. II. contain a modified sphingosine. III. usually has a ceramide moiety IV. function as a precursor to sterols. O II, IV O II, II O , II, II O I, II, IV
- Which is more effective as an antiseptic: ethyl alcohol or isopropyl alcohol? Choose only one and explain why.Proteases are one of the main drug targets. Choose the False statement regarding proteases. A. Proteases are enzymes that cleave peptide bonds. B. Water is a reactant in the reaction catalyzed by proteases. C. Proteases, like all enzymes show substrate specificity, meaning they cleave only substate that fit the bonding product. D. Proteases rely on the proton transfer from NADH to the substrate. E. Protease mechanism involves only acid-base catalysis.Which of the following will happen if perchloric acid is added to a neutral polysaccharide gel? (Select 2 Possible Answers) a. increases gel formation b. decreases gel formation c. increases sol formation d. decreases sol formation