Membrane Lipids in Tissue Samples Obtained from Different Parts of the Leg

question 18

Multiple Choice

Membrane lipids in tissue samples obtained from different parts of the leg of an arctic reindeer have different fatty acid compositions. Logically, what difference would you predict?

• A) Membrane lipids from tissue near the hooves (feet) contain a greater proportion of unsaturated fatty acids relative to that in the upper leg.
• B) Membrane lipids from tissue in the upper leg contain a greater proportion of unsaturated fatty acids relative to that in the hooves (feet).
• C) Both answers A and B are equally likely.
• D) Neither answer A nor B is likely.

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