The amino acids belonging to the pyruvate family includes: A: alanine B: valine C: lysine D: leucine

Which one of the following amino acids is NOT contained in the<br/>protein? () A: Cystine B: Arginine C: Lysine D: Citrulline

Which of the following amino acids does not exist in protein molecule A: cysteine B: histidine C: citrulline D: arginine E: lysine

The photoreceptor protein rhodopsin, which is the light-sensitive protein made by the rod cells in the retina, detects light by means of a small molecule, ________, which is attached to the protein by a covalent bond to a lysine side chain.

Histone deacetylases (HDACs) are a group of enzymes closely related to __________. They catalyze acetyl group removal from lysine residues in histones and non-histone proteins, causing transcriptional repression. HDACs are usually components of multiprotein complexes.

Carnitine, a zwitterionic compound derived from lysine, is involved in fatty acid metabolism and is required at which two points in the transport of fatty acids from the cytoplasm to the mitochondria (see Figure 3-5) A: A and E B: A and C C: B and C D: B and D E: E and D

Found in the chromatin of all eukaryotic cells, histones have molecular weights between 11,000 and 21,000 and are very rich in the basic amino acids arginine and lysine which together make up about _____ of all the amino acid residues. A: 1/6 B: 1/5 C: 1/4 D: 1/3