The excerpts below were obtained from a 2022 Journal of Biol…

The excerpts below were obtained from a 2022 Journal of Biological Chemistry publication called “Structural basis for the in vitro efficacy of nirmatrelvir against SARS-CoV-2 variants”. In Figure 2, nitrogen atoms are colored blue, sulfur atoms are colored yellow, and oxygen atoms are colored red. Nirmatrelvir is known to form a reversible covalent bond to Cys 145. What is the side chain of Cys that is involved in the formation of the covalent bond?

The non-cellular, FLUID part of blood that is left over afte…

The non-cellular, FLUID part of blood that is left over after the blood has been allowed to clot in a container and then centrifuged is called _______________. *One word answer. Use all lowercase letters. *Do not add any spaces or punctuation before or after the answer.