Pchem test 1.docx - Pchem test 1 Dr Kulkarni 1 Which of the following is an example of covalent bonding C disulfide bonds 2 The only non-chiral amino

Pchem test 1.docx - Pchem test 1 Dr Kulkarni 1 Which of the...

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Pchem test 1 Dr. Kulkarni 1. Which of the following is an example of covalent bonding? C. disulfide bonds 2. The only non-chiral amino acid in this list B. glycine 3. The pka of carbonic acid solution is 8.2. The solution is a mixture of 12M carbonic acid and 6M bicarbonate ion. Using the Henderson Hassel Bach equation; ph=pKa+log (A/HA). Calculate the pH of carbonic acid solution C. 7.9 4. ____ is defined as an enzyme with a cofactor B. holoenzyme 5. Penicillin V is an acidic drug with a pKa of 2.7. At pH 6.3 which will be the most dominant form? A. ionized form 6. Alcohols are examples of: b. Non-electrolytes 7. Which of the following amino acid will be present in β- turns? a. Glycine 8. Physiological factors regulating enzyme activity does not include c. Non-competitive inhibition 9. Which of the following amino acids disrupts α-helix structure C. proline 10. The Fischer projection shown below is for COOH H C + ¿ NH 2 ¿ R b. D-amino acid 11. The rate of reaction is first order when the
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I. substrate concentration is much less than K m 12. Buffering capacity depends on the II. PKa of the buffer III. Concentration (amount) of the buffer in the system
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