Lipid Structure

What is the lipid present in the cell membrane called?

• Triglyceride

• Glycerol

• Phospholipid

• Fatty acid

Lipids are grouped into these groups.

• Monosaccharides, disaccharides or polysaccharides

• Saturated, Monounsaturated and Polyunsaturated

• Unsaturated

• Monounsaturated, Polyunsaturated

These molecules contain a double bond between two carbon atoms.

• Monounsaturated fatty acids

• Cis Polyunsaturated fatty acids

• Saturated fatty acids

• Trans Polyunsaturated fatty acids

Fatty acids with hydrogen atoms artificially added to the double bond is called...

• Monounsaturated fatty acids

• Trans Polyunsaturated fatty acids

• Cis Polyunsaturated fatty acids

• Saturated fatty acids

The structure of _____________ is slightly bent.

• Monounsaturated fatty acids

• Cis Polyunsaturated fatty acids

• Trans Polyunsaturated fatty acids

• Saturated fatty acids

A triglyceride molecule is synthesized in the ________________ reaction of glycerol and 3 fatty acids.

• hydrolyzing

• condensation

Triglyceride is composed of:

• Glycerol, 2 fatty acids

• 3 Glycerols and 1 fatty acids

• 3 Glycerides

• Glycerol, 3 fatty acids

Triglycerides are formed by

• Hydrogen bonding

• Covalent bonding

• Ester linkage

• Glycosidic bonds

Which of the following molecules make up the basic structure of a cell membrane?

• waxes
• steroids
• fatty acids
• phospholipids

Carbon chains are principal features of both carbohydrates and lipids.  What is the primary difference between these two types of macromolecules?

• Lipids always have longer carbon chains than carbohydrates.
• Carbohydrates cannot form rings like lipids can.
• Lipids provide energy, but carbohydrates cannot.
• Carbohydrates form ring structures, lipids form long chains