Why Does a Starchy Food Like Bread Become Hard When

question 223

Multiple Choice

Why does a starchy food like bread become hard when it dries out?

• A) In the absence of water, unbranched starch molecules aggregate together by forming hydrogen bonds.
• B) Cellulose molecules in the cells aggregate in the absence of water.
• C) The release of carbon dioxide from drying starch causes the food to harden.
• D) The remaining water and heat cause the polysaccharide chains to bind together.
• E) Mold growth interferes with α linkages, causing the food to harden.

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Definitions:

Wye-Connected

A method of connecting three-phase motors and generators where the end of each of the three coils is connected to form a 'Y' shape, also known as a star connection.

Line Voltage

The voltage present in the electrical power transmission lines available for end users or machinery.

Phase Voltage

The voltage measured in a single phase of a multi-phase system, often used in the analysis of electrical power distribution.

Square Root

The value that, when multiplied by itself, gives the original number. It is often represented by the radical symbol √.