Amino Acids

Question 1

At what pH do amino acids have no net charge across N- and C- terminals. What is the term for this?

Answer 1

7, zwitterion

Question 2

_________ is the ability to act as an acid or a base by donating or accepting electrons.

Answer 2

amphoteric

Question 3

Plants convert nitrogen into a usable organic form: these are _________ __________.

Answer 3

amino acids

Question 4

Once animals ingest the plants, what is the anabolic reaction and how do they catabolize them?

Answer 4

anabolic:
1.) making proteins or other AAs
catabolic:
1.) energy–>CAC has entry points for various AA
2.) release of N, which is used to make: purines/pyrimidines, heme, and urea

Question 5

What are the 3 branched chain AA?

Answer 5

Valine, leucine, isoleucine

Question 6

Which 3 AA are highly enriched in blood leaving the liver, and serve to help transport N to other tissues.

Answer 6

Val, Leu, Iso

Question 7

What are the essential amino acids? (8) and (2) just infants?

Answer 7

valine, isoleucine, leucine, lysine, methionine, phenylalanine, threonine, tryptophan

infants: histidine and arginine

Any (infant) Help (infant) In Learning These Little Molecules Proves Truly Valuable

Question 8

Complete proteins contain what?

Answer 8

sufficient amounts of EAA to support health (in general they come from animal products)