The Fact That One Microgram of Retinol and 12 Micrograms

question 98

Multiple Choice

The fact that one microgram of retinol and 12 micrograms of dietary beta-carotene are both equal to one retinol activity equivalent indicates that:

• A)retinol has greater activity than beta-carotene.
• B)beta-carotene is not a significant dietary source of vitamin A.
• C)toxicity is more likely to occur with beta-carotene than retinol.
• D)beta-carotene is absorbed and converted less efficiently than retinoids.
• E)most individuals would benefit from retinol supplements.

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Definitions:

Price Discrimination

A method of pricing in which a provider charges different prices for virtually identical goods or services in different market areas.

Electric Heating

A system of converting electric energy into heat for warming indoor spaces, typically regarded as more efficient than traditional heating methods.

Heating Substitutes

Alternative heating sources that can replace the primary heating method, including electric heaters, solar heating, and geothermal heat pumps.

Price-Discriminating

A pricing strategy where a seller charges different prices for the same product or service to different customers, based on various criteria.