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Chapter 9: Q13P (page 290)

Why can鈥檛 triacylglycerols be significant components of lipid bilayers?

Short Answer

Expert verified

Phosphate is absent in triglycerides.

Step by step solution

01

Introduction

Many other organic compounds other than lipids are insoluble in water. such as alkanes that are insoluble in water are referred to as a lipid. They areenergy storage molecules and chemical messengers that include fats, waxes, oils, hormones, and some membrane components.

02

Lipid bilayer

Due to the existence of an aliphatic component in fatty acid chains,triacylglycerols are insoluble in water. Triacylglycerols are unable to form a bilayerdue to the absence of a polar head group. The non-polar acyl chain on the interior would have to be masked, and the glycerol molecule would have to be present on the surface in contact with water to create a lipid bilayer for the triacylglycerols.

03

Conclusion

Thus, triglyceride isunable to create a lipid bilayer because of the absence of a polar head group.

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Most popular questions from this chapter

Brief Exercises Brief, online bioinformatics homework exercises can be found in WileyPLUS Learning Space.

Exercise 1 Drawing and Naming Fatty Acids

Exercise 2 Introduction to Lipidomics

Exercise 3 Properties of Membrane Proteins

Question: Explain why the action of phospholipase A2on membrane lipids could affect the lipid bilayer changes that occur during endocytosis or exocytosis.

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