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1. Chiral objects a) are cyclic compounds in the chair form b) are not superimpo

ID: 619371 • Letter: 1

Question

1. Chiral objects a) are cyclic compounds in the chair form b) are not superimposable on their mirror images c) never occur in nature d) do not form crystals 2. Stereoisomers are a) molecules with a well defined three-dimensional shape b) molecules with very little free rotation around single bonds c) nonsuperimposable mirror-image molecules d) compounds with more than three carbon atoms 3. The absolute configuration of amino acids is denoted by its relationship to the L- or D- forms of a) glyceraldehyde b) glucose c) tartaric acid d) alanine 4. Which amino acid is neither D nor L in configuration? a) Ala b) Asp c) Gly d) Pro e) Trp Amino Acids' Properties 5. Which of the following is an amino acid not found in proteins? a) asparagine b) ornithine c) isoleucine d) proline

Explanation / Answer

b