Two Striking Features of a Graph of U

question 35

Multiple Choice

Two striking features of a graph of U.S. real GDP per capita over the twentieth century are the:

• A) overall upward trend interrupted by a large downturn due to the economic depression in the 1930s.
• B) nearly constant level with a large downturn in the 1930s.
• C) downward trend in the first half of the century followed by the upward trend in the second half.
• D) constant level in the first half of the century followed by the upward trend in the second half.

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Definitions:

Acetyl-CoA

A molecule that plays a key role in metabolism, particularly in the synthesis and oxidation of fatty acids, and the Krebs cycle.

Citric Acid Cycle

A series of chemical reactions used by all aerobic organisms to generate energy through the oxidation of acetate derived from carbohydrates, fats, and proteins.

Electron-Transport Chain

A series of complexes that transfer electrons from electron donors to electron acceptors via redox reactions, coupled with the transfer of protons across a membrane.

Glycolysis

A series of reactions that break down glucose to produce energy in the form of ATP, taking place in the cytoplasm of cells.