Lipid Group 2

Multiple Choice

What does the term "fluid mosaic model" describe in the context of phospholipids in biological membranes?

• Dynamic and flexible movement of phospholipids and proteins

• Rigid and ordered arrangement for stability

• Mosaic-like patterns formed by cholesterol

• Unique composition in nerve cell membranes for electrical signaling

Multiple Choice

What is the basic structure of a sphingolipid?

• A glycerol backbone with two fatty acid chains and a phosphate group

• A sphingosine backbone, an amide-linked fatty acid and a polar head group

• A single fatty acid chain linked to a phosphate group

• A triglyceride structure with three fatty acid chains

Multiple Choice

What do all steroids have in common?

• They contain 3 rings of carbon atom

• They are manufactured by the Liver

• Cholesterol is the primary precursor

• They are Lipophobic

Multiple Choice

4. What is the primary structural feature of phospholipids that allows them to form a bilayer in biological membranes?

• Phosphate group

• Hydrophilic heads

• Hydrophobic tails

• Glycerol backbone