Lipids: Classification and Structure
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Questions and Answers

Lipids are soluble in water.

False (B)

Which of the following is NOT a type of lipid?

  • Carbohydrates (correct)
  • Sterols
  • Fatty acids
  • Phospholipids

What are the building blocks of lipids?

Fatty acids

Triglycerides are composed of fatty acids bound to a ______ molecule.

<p>glycerol</p> Signup and view all the answers

Match the following lipid types with their primary function:

<p>Fatty acids = Building blocks of lipids Triglycerides = Energy storage Phospholipids = Cell membrane components Sterols = Hormones and cell membrane structure</p> Signup and view all the answers

Flashcards

Lipids

Organic compounds including fats, oils, waxes, and steroids, insoluble in water.

Fatty Acids

Building blocks of lipids with long hydrocarbon chains, can be saturated or unsaturated.

Triglycerides

Lipids formed by three fatty acids bound to a glycerol molecule, main constituents of fats and oils.

Phospholipids

Lipids that form cell membranes, consisting of two fatty acids and a phosphate group.

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Sterols

A type of lipid characterized by a four-ring structure, includes cholesterol, vital for cell membranes.

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Study Notes

Lipids: Classification and Structure

  • Lipids are organic compounds, including fats, oils, waxes, and steroids.
  • They are hydrophobic (insoluble in water) but soluble in nonpolar solvents.
  • Key lipid types include fatty acids, triglycerides, phospholipids, sterols, and prostaglandins.

Fatty Acids

  • Fatty acids are the fundamental building blocks of lipids.
  • They possess long hydrocarbon chains.
  • These chains can be saturated (containing only single bonds) or unsaturated (containing double bonds).

Triglycerides

  • Triglycerides are composed of fatty acids bound chemically to a glycerol molecule.
  • They're the primary components of fats and oils.

Phospholipids and Sterols

  • Phospholipids and sterols (like cholesterol) are crucial components of cell membranes.

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Description

Explore the fascinating world of lipids through this quiz. Understand the classification of lipids, including fatty acids, triglycerides, phospholipids, and sterols. Test your knowledge about their structures and functions within biological systems.

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