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Use a scantron to answer the following questions Each one the 22 questions is wo

ID: 978011 • Letter: U

Question

Use a scantron to answer the following questions Each one the 22 questions is worth 3 points. Which a-amino acid does not belong to the L-series o f amino acids? cysteine anine glycine serine proline Which amino acid can be used as a cross-linking agent by forming disulfide bridges? Serine alanine glycine cysteine proline Which of the following is a polypeptide? Silk amylopectine cellulose amylose glucose Which of the following is a polysacharide? glucose silk wool keratin cellulose What is paper made from? glucose silk wool starch cellulose Which of the following contains peptide linkages? keratin amylopectine cellulose amylose glucose A protein in polymer science language is a____polyester polyamide polycarbonate polyurethane Which of the following is the monomer for cellulose? alpha-D-glucose beta- D-glucose chitin amylose glucose Which of the following is the monomer for amylose? alpha-D-glucose beta- D-glucose chitin amylose glucose Which one of the following is not a biopolymer? amylopectin DNA glycogen chitin none o f these Which of the following is nylon-2? polyalanine polyserine polycystein polyglyeine Compare the following tripeptides and determine their relationships: Pro-Gly-Pro and Gly-Pro-Pro. constitutional isomers the same compound different compounds none o f the above Which of the following contains 1,4- and 1.6-glycosidic linkages? keratin amylopectine cellulose amylose glucose Which of the following is present in humans? starch cellulose None

Explanation / Answer

1. B) Alanine

2. D) Cysteine

3. C) Cellulose

4. E) Cellulose

5. E) Cellulose

6. A) Keratin.

7) B) Polyamide

8) B) Beta-D-Glucose

9) A) alpha-D-glucose

10. B) DNA

11. D) Polyglycine

12. A) Constitutional isomers

13. B) Amylopectine

14. None