Many globular proteins contain a segment of amino acids that is extended (stretched out) and after making a U-turn binds with itself. This is one kind of Beta pleated sheet known as antiparallel. Instead of H bonds assisting in forming a spiral (as in an alpha helix), H bonds
exist between adjacent amino acids so as to cause a ladder-like arrangement stabilizing that part of the protein.
a.) In an antiparallell Beta pleated sheet containing 100 amino acids, 50 in each strand, how many H bonds would form? Explain your answer.
b.) In an alpha helix of 50 amino acids, how many H bonds would form? Explain your answer.