Discrete Practice Questions

Consult your online resources for Full-Length Exams and Passage-Based Questions (for certain
chapters).

1 . Which   of  the following   amino   acids   does    not have    an  L-enantiomer?

(A)  Cysteine

(B)  Threonine

(C)  Glutamic   acid

(D)  Glycine

2 . Which   of  the following   would   be  formed  if  methyl  bromide were    reacted with    phthalimide

and followed    by  hydrolysis  with    an  aqueous base?

(A)  C 2 H 5 NH 2

(B)  CH 3 NH 2

(C)  (C 2 H 5 ) 3 N

(D)  (CH 3 ) 4 N+Br–

3 . Which   of  the following   amino   acids   contain(s)  sulfur?

I.   Cysteine

II.  Serine

III.     Methionine

(A)  I  only

(B)  I  and III only

(C)  II and III only

(D)  I, II, and III