BIO 353 (Cell Biology) Exam 1 True/False Revision Study Questions and Answers Arizona State University
Why are alpha helices and beta sheets common structural elements?
Correct Answer -They do not involve bonding between R groups
List the 3 types of intra-molecular interactions in proteins:
Correct Answer -1. hydrogen bonds
2. ionic bonds
3. van der Waals forces
What does the Denaturation-Renaturation experiment indicate about
proteins? Briefly describe the
experiment.
Correct Answer -This experiment indicates that all the information
necessary to specify the three-dimensional shape of the protein is
contained in its amino acid sequence. Folded protein is exposed to urea
which denatures protein, removing urea results in refolding of peptide into
functional protein conformation
Specificity:
Correct Answer -the ability of a protein to bind to just one or a few
molecules out of many thousands of
different molecules it encounters
Ligand:
Correct Answer -any substance that can bind to a protein (another protein,
ion, small molecule or other