An Unknown Sample Known to Contain Either Triglycerides or Phospholipids

question 33

Multiple Choice

An unknown sample known to contain either triglycerides or phospholipids is placed in water.The sample forms a separate layer on top of the water, with no mixing in the bulk volume of water.What type of lipid does the sample contain, and what structural element is responsible for the sample's behavior in water?

• A) Triglycerides, double bonds in fatty acid tails
• B) Triglycerides, ester linkages
• C) Triglycerides, long-chain hydrocarbon tails
• D) Phospholipids, ester linkages
• E) Phospholipids, glycerol backbone

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Definitions:

Statistical Methodology

The collection of methods and practices used in collecting, analyzing, interpreting, and presenting data in statistical research.

Descriptive Statistics

Statistical methods that summarize and organize the characteristics of a data set, including measures such as mean, median, and standard deviation.

Population

A complete set of elements (people, objects, transactions, etc.) that share at least one common characteristic.

AVERAGE(range)

A function used in spreadsheet software to calculate the arithmetic mean of a range of cells.