The Pythagoreans

question 44

Multiple Choice

The Pythagoreans

• A)rejected democracy as too chaotic and corrupt.
• B)believed that human beings were simply complex machines.
• C)participated in the cult of Dionysus.
• D)discovered that the intervals in the musical scale can be expressed mathematically.
• E)practiced astrology.

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Definitions:

(-)-glyceraldehyde

A specific stereoisomer of glyceraldehyde, a simple sugar molecule that serves as an intermediate in several metabolic pathways.

(+)-glyceraldehyde

An enantiomer of glyceraldehyde, denoted as having a positive optical rotation; it is a simple sugar and plays a role in several metabolic pathways.

E.e.

Enantiomeric excess, a measure of the purity of an enantiomer in a mixture, indicating the percentage difference between two enantiomers' concentrations.

Asymmetric Carbon

A carbon atom bonded to four different groups, creating a chiral center.