which of the following are functions of amino acids Smith Multiple choice questi
ID: 1084794 • Letter: W
Question
which of the following are functions of amino acids Smith Multiple choice question (2 pts for each question) 1. Which of the following is NOT an accurate description of the "hydrophobic effect? efflect? A hydrophobic molecules B. hydrophobic molecules aggregate are strongly attracted to each other and stabilized by together when in aqueous solution and don't mix with the polar solvent C. the hydrophobic effect is an important driving force for D. the hydrophobic interactions of water effect is observed because hydrophobic molecules disrupt the normal hydrogen bonding 2. What is one product of a reaction between two amino acids, such as Glycine and Alanine? A One H' B. Two H C. One molecule of water D. One molecule of Ammonia, NH. E. To keep the solution within one pH unit of the pk A tue statement about hydrophobic interactions is that they in water A) are the driving force in the formation of micelles of B) do not contribute to the structure of water-soluble proteins involve the ability of water to denature proteins. D) primarily involve the effect of polar solutes on the entropy of aqueous 4. The aqueous solution with the lowest pH is: A) 0.01 M HCL B) 0.1 M acetic acid (pKa 4.86). C) 0 1 M formic acid (pKa-3.75) D) 0.1 M HCI E) 10-12 M NaOH. 5. Which of the following statements about buffers is true? A buffer composed of a weak acid of pka 5 is stronger at pH 4 than at pH B) At pH values lower than the pKa, the salt concentration is h C) higher than that of the acid The pH of a buffered solution remains constant no matter how much acid or base is added to the solution st buflers are those composed of strong acids and strong bases trations in a buffer are equal. E) When pH = pKa, the weak acid and salt concen 6. Two amino acids of the standard 20 contain sulfur atoms. They are A) cysteine and serine. B) cysteine and threonine C) methionine and cysteine D) methionine and serine E) threonine and serineExplanation / Answer
2) The condensation reaction of the Glycine and Alanine results in the formation of dipeptide (glycylalanine) and one mole of water.
Option C is the right answer.
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