cellular respiration (DEAMINATION) converts the amino acids into energy (ATP). What is significant about an R-group? It distinguished amino acids from each other- enzymes recognize different R groups
On November 8, another four states voted in favor of outright marijuana legalization: California, Nevada, Maine, and Massachusetts all voted in favor of legalized use, sale, and consumption of recreational marijuana. Marijuana at the Grass Station marijuana shop in Denver, Colorado.Rick Wilking/Reuters.
A look at U.S. marijuana laws. Updated 3:47 PM ET, April 30, 2015. Four states -- Alaska, Colorado, Oregon and Washington -- and Washington, D.C. have legalized marijuana for recreational use. Many other states allow some legal use of marijuana, primarily for medicinal purposes.