Irene Gold Boards Part 1-Biochemistry Exam Questions with 100% Correct Answers

Irene Gold Boards Part 1-Biochemistry Exam Questions with 100% Correct Answers How many a.a.'s are incorporated into proteins? - Answer ️️ -20 What structures make up an AA? - Answer ️️ -Amine group Acid group Hydrogen R-Group = defining group All a.a.'s are in L-form EXCEPT for what? - Answer ️️ -glycine Glycine is not in L-form because? - Answer ️️ -it doesn't contain a chiral carbon define chiral carbon - Answer ️️ -different compounds at each binding site All a.a's are what? - Answer ️️ -amphoteric define amphoteric - Answer ️️ -can act as an acid or base What are the essential a.a.'s? **spevifically P and T - Answer ️️ -PVT TIM HALL phenylalanine valine tryptophan threonine isoleucine methionine histidine **child only arginine leucine lysine Histidine is __________________ in a child but not an adult - Answer ️️ - essential What are the purely ketogenic a.a.'s? - Answer ️️ -leucine and lycine **Leucy Lyes to get the KEys** Lysine is a precursor to ____ - Answer ️️ -precursor to carnitine What does carnitine do? - Answer ️️ -takes FA into mitochondria for B- oxidation What are the aromatic a.a.'s? - Answer ️️ -phenylaline tyrosine tryptophate **TYRone will TRYP your PAL in the ring (aromatics have rings) How many of the aromatic a.a.'s are ALSO essential? - Answer ️️ -2 What is the converting enzyme of L-Phenylalanine to Tyrosine? - Answer ️️ - Phenylalanine hydroxylase What will a deficiency of Phenylalanine hydroxylase cause? - Answer ️️ -PKU = phenylketone urea What type of ring does tryptophan have? - Answer ️️ -indole ring What are the sulfur-containing a.a.'s? - Answer ️️ -cysteine methionine cystine = 2 cysteine's linked toget