Chapter 7. Transition Temperature of Membranes

Analyze the Data

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Analyze the Data 7-2: Transition Temperature of Membranes

After performing differential scanning calorimetry [a procedure used to determine the transition temperature of a given membrane by recording the amount of heat absorbed prior to phase transition (from solid to fluid state)] on membranes from three different organisms, you obtain the results shown in the graph at the right.

Which of the following statements is probably true about the lipid composition of membrane C?

It has high levels of saturated hydrocarbons and long hydrocarbon tails compared with A and B.

It has high levels of saturated hydrocarbons and short hydrocarbon tails compared with A and B.

It has high levels of unsaturated hydrocarbons and long hydrocarbon tails compared with A and B.

It has high levels of unsaturated hydrocarbons and short hydrocarbon tails compared with A and B.

Correct.

Incorrect.

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Chapter 7. Transition Temperature of Membranes

Introduction