Old Chapter - Amino Acids info
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- What are the micromolecules of Protien?
- Amino Acids
- Can amino acids be basic?
- Yes, because of the NH2
- Technically, how many amino acids are possible?
- An infinite amount, but there are actually only 20 are actually used in nature
- What is the simplest AA?
- Glycine
- Only AA with 2 ligands connected?
- Proline
- Cysteine and Methionine are special because?
- They are the only AA that have sulfur in them.
- What are polypeptide chains joined together by?
- Condensation Rxn's
- What kind of bonds does the condensation reaction cause?
- Peptide Bonds
- What are the two functional groups involved in condensation reactions?
- carboxyl and amino
- What does zwitter mean?
- "Hybrid" (in German)
- What physical properties of salt does an amino acid gain when it acts as a Bronsted-Lowry base or acid?
- It becomes a crystalline solid, has a high melting point, is very soluble in water, and is not very soluble in hydrocarbon solvents.
- Changing what changes the amount of zwitterion present?
- the pH
- What happens to zwitterions at low pH values(acidic)
- They gain an H+ on their carboxyl end
- What is the isoelectric point?
- The pH value when 50% of the AA is in zwitterionic form.
- What are three ways you can group amino acids?
- By the isoelectric points, by the polarity, and by if your body makes them or not.
- What are the 8 amino acids that you do not make in your body called?
- Essential amino acids
- Where must you get the 8 amino acids you do not make from?
- Your diet
- What amino acid is made by bacteria in the GI tract?
- His, and it is not considered essential.
- What are 2 amino acids that are very hard to get in a vegetarian diet?
- Lysine and Isoleucine