The Alpha-Helix

question 138

Multiple Choice

The alpha-helix

• A) has hydrogen bonds that are perpendicular to the axis of the helix.
• B) has 3.6 amino acid residues per turn.
• C) is made up chiefly of proline or hydroxy proline residues.
• D) All of the above are true.
• E) Only two of the above are true.

---

Definitions:

Returns to Scale

The rate at which output changes if the scale of all inputs is changed by the same proportion.

Output Level

The amount of product or service that is produced by a company or an economy at a given time.

Isoquants

Curves representing combinations of inputs which yield the same level of output in production theory, illustrating technical substitution and factor combinations.

MRTS

Marginal Rate of Technical Substitution; the rate at which one input must increase when another input decreases to keep output constant.