Midterm 1 Practice
Subject:
Biology [1]
Tags:
AP Biology [10]
? ? ? 2. The amino acid glycine has the following structure: ? Which of the following is true about this amino acid: It does not have either L- or D- forms It only has an L- form It only has a D- form It cannot function as a buffer When found in a polypeptide chain this would be a very polar residue Which of the following is true about atoms? The electronegativity increases with the mass number. The electronegativity increases with the atomic number. Different isotopes have different chemical reactivities. Chemical reactivity is primarily determined by the electron configuration. All of the above are true. The most abundant form of RNA in a cell is: Messenger RNA (mRNA) Ribosomal RNA (rRNA) Transfer RNA (tRNA) Nucleolar RNA (nRNA) Mitochondrial RNA (mitoRNA)