Drawn Below Are Segments of β Sheets, Which Are Rigid

question 71

Essay

Drawn below are segments of β sheets, which are rigid pleated structures held together by hydrogen bonds between the peptide backbones of adjacent strands (Figure 4-79).The amino acid side chains attached to the α-carbons are omitted for clarity. (A)


(B)



Figure 4-79
A.For panel (A) and for panel (B), indicate whether the structure is parallel or antiparallel.
B.Draw the hydrogen bonds as dashed lines (||||||).

---

Definitions:

After-Tax Operating Income

The income a company generates from its operations after subtracting taxes.

Required Return

The minimum expected return by investors for investing in a particular security or project, reflecting the risk level.

Fixed Assets

Long-term tangible assets held for business use and not expected to be converted to cash in the short-term.

Operating Costs

Expenses associated with the ongoing operations of a business, such as wages, rent, and utilities, excluding costs linked to producing goods.