A 100-G Cube of Ice Is Heated from −120°C to +120°C

question 29

Multiple Choice

A 100-g cube of ice is heated from −120°C to +120°C. In which of the following processes is the greatest amount of energy absorbed by this material?

• A) warming ice to the melting point
• B) melting the ice to become water
• C) warming the resulting water
• D) vaporizing the water to become steam
• E) heating the steam

Describe the mechanisms of membrane transport.

Explain the role of the plasma membrane in cell communication.

Identify the differences between passive and active transport mechanisms.

Distinguish between different types of transport proteins and their functions.

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