C. Cysteine
C. C D. D
3. Some amino acids have ionizable side chains. Which amino acid would have this titration curve?
A. Tyrosine B. Aspartate C. Cysteine D. Glycine E. Lysine
4. Amino acids are linked together in proteins by __________ bonds. This peptide bond formation reaction results in the loss of a __________ molecule, which makes this a condensation reaction. The amino acids that make up a protein are numbered from the ___ terminus to the ___ terminus. The protein size in Daltons can be determined by multiplying the number of amino acids by ___, the average size of an amino acid.
Answer: The suggested answer is peptide, water, N, C, 110
5. Which of the following definitions are not properly matched with the respective proteins? A. Amylase: Transport/storage protein B. Collagen: Structural protein C. Antibody: Immune system molecule D. Hemoglobin: Transport protein E. Actin: Required for muscle contraction
6. Additional chemical groups such as small organics or metals attached to proteins are called: A. Subunit B. a-chain C. Residue
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