Name: tinit A3 I sit 2018Mactice test Date: Indicate the answer choice that best

Question

Name: tinit A3 I sit 2018Mactice test Date: Indicate the answer choice that best completes the statement or answers the question 1. You are analyzing a protein-protein interaction. which best describes the association constant a. Ka, units are MA-1 b. Kd, units M c. Go, units: kum 1 d. Kd, units M~! 2. What type of biopolymer contains an amide as a connector between monomers? a. protein b. DNA c. triglyceride HN- pka 10 Histidine pK, = 9.1 8 6.0 PH 6 21.82 2.0 3.0 1.0 OH (equivalents) 3. What is the net charge of histidine at pH 2? d. +2 e. -2 4. Which amino acid has an amide as a part of its R group? b. glutamate e. histidine c.glycine a. glutamine d. glutamic acid 5. The secondary structure of a protein depends on which of the following types of bonds/interactions b. covalent bonds c. disulfide bonds a. hydrogen bonds d. hydrophobic interactions e.glycosidic bonds

Explanation / Answer

Thus option (a) should be correct.

Ka= M-1.

Option (a) protein .

3. Charge of histidine at pH 2 is +1. Option (a).

4. Glutamine (a) has amide as R group.

5. Hydrogen bonding is present in secondary structure. (a).

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