Determine if each statement is true or false and fill in the blanks with True or

Question

Determine if each statement is true or false and fill in the blanks with True or False. Amino acids with acidic sidechains have pi's of about 10. The amino-acids used by ribosomes in protein synthesis are all alpha amino-acids, but other types of amino-acids exist in nature. Secondary protein structure is held together by hydrogen bonds, dipole-dipole interactions, and hydrophobic/phallic interactions between amino-acid side chains. Neutral amino-acids exist as charged molecules called zwitterions. Alpha helices and beta sheets are types of protein secondary structure. Protein folding depends on weak intermolecular forces and is easily disrupted (denatured) by changes in pH, solvent, heat, or addition of metal ions. The Edman Degradation allows for the sequencing of all length peptide chains. Selective formation of peptide bonds is easily done by mixing two amino-acids together and heating. Protein activity is determined by the 3D shape of the molecule Proteins are used as structural materials, catalysts, signaling molecules and intracellular transports in living systems.

Explanation / Answer

1. False

2. True

3. True

4. False

5. True

6. True

7. False

8. True

9. True

10. False

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