Describe the four structural levels of proteins
What will be an ideal response?
1. The primary structure of a protein resembles a string of beads in which the amino acids form the basis for the protein molecule.
2. A protein in its secondary structure may exist in a coiled alpha-helix or an accordion-like beta-pleated sheet.
3. Most proteins reach the more complex tertiary level of structure. The tertiary structure is achieved when the alpha-helical or beta-pleated region of the polypeptide chain folds in on itself to form a globular (ball-like) molecule.
4. The quaternary structure results when two polypeptide chains combine to form a complex protein.
You might also like to view...
Plasma makes up about ________ percent of a centrifuged sample of whole blood.
A. 55 B. 45 C. 25 D. 75 E. 35
In general, fast-twitch fibers generate less power than slow-twitch fibers
Indicate whether this statement is true or false.
List 3 ways to control insects in cattle
What will be an ideal response?
Sarcomeres are arranged end to end as
a. Z lines b. myofibrils c. T tubules d. myofilaments e. cross bridges