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Lipids in Biology

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Questions and Answers

Which of the following is NOT a main type of lipid?

Fatty acids

Phospholipids

Sterols

Proteins (correct)

Lipids are soluble in water.

False (B)

What are the main building blocks of lipids?

Fatty acids

The long hydrocarbon chains of fatty acids can be either or .

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

Match the type of lipid with its primary function:

<p>Triglycerides = Energy storage Phospholipids = Cell membrane structure Sterols = Hormones and cell membrane components</p> Signup and view all the answers

Flashcards

Lipids

Organic compounds that include fats, oils, waxes, and steroids; insoluble in water, soluble in nonpolar solvents.

Fatty Acids

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

Triglycerides

Lipids composed of three fatty acids bonded to glycerol; main components of fats and oils.

Phospholipids

Lipids that are a major component of cell membranes; consist of two fatty acids and a phosphate group.

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Sterols

A type of lipid including cholesterol; important for cell membrane stability.

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Study Notes

Lipids

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

Fatty Acids

Fatty acids are the building blocks of lipids.
They have long hydrocarbon chains.
These chains can be saturated or unsaturated.

Triglycerides

Triglycerides consist of fatty acids bonded to a glycerol molecule.
They are the main 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, including their structure and types such as fatty acids, triglycerides, phospholipids, and sterols. This quiz covers the key characteristics and functions of these essential organic compounds in biological systems. Test your knowledge on how these lipids play a critical role in cell membranes and energy storage.