In One Experiment,the Caloric Intake of Mice Was Reduced from Free-Feeding

question 34

Multiple Choice

In one experiment,the caloric intake of mice was reduced from free-feeding levels by up to 25,55,or 65%.The benefits of the caloric restriction were greatest in the 65% group.These benefits included

• A) an increased life span.
• B) a reduced incidence of cancer.
• C) improved immune responses.
• D) all of the above
• E) none of the above

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Definitions:

Antiaromatic

Compounds that have conjugated pi systems but do not obey Huckel's rule, leading to instability.

Nonaromatic

A term describing organic compounds that do not contain a conjugated system of pi electrons in a ring, thus not meeting the criteria for aromaticity.

Aromatic

Refers to compounds that contain a ring of continuously overlapping p-orbitals, displaying enhanced stability as seen in benzene.

Nonaromatic

Refers to organic compounds that do not fulfill the criteria for aromaticity, lacking a conjugated system of pi electrons.