Question

Match the following terms with the best description.

1. Small region of the plasma membrane enriched in sphingolipids and cholesterol; membrane microdomain, often useful in clustering functionally related lipids and proteins together.
2. Having both hydrophobic and hydrophilic regions, as in a phospholipid or many detergent molecules.
3. V The main type of phospholipid in animal cell membranes, with two fatty acids and a polar head group attached to a three-carbon glycerol backbone.
4. Lipid molecule with a characteristic four-ring steroid structure that is an important component of the plasma membrane of animal cells.
5. Organelle surrounded by lipid monolayer and containing neutral lipids in its interior, unlike other organelles surrounded by lipid bilayers and containing an aqueous interior; highly abundant in adipose (fat) cells.
6. Lipid molecule with one or more sugar molecules covalently attached.
7. Most common arrangement into which amphipathic/amphiphilic lipids self- assemble, driven primarily by hydrophobic force of the surrounding aqueous environment.
A. Amphiphilic
B. Lipid raft
C. Lipid droplet
D. Phosphoglyceride
E. Lipid bilayer
F. Glycolipid
G. Cholesterol

Answer 1

The terms 'Lipid raft', 'Amphiphilic', 'Phosphoglyceride', 'Cholesterol', 'Lipid droplet', 'Glycolipid', and 'Lipid bilayer' each correspond to specific descriptions involving their structure, hydrophilic and hydrophobic properties, and their functional roles in cell membranes.

Step-by-step explanation:

Let's match each term with the best description:

1. Lipid raft: A small region of the plasma membrane enriched in sphingolipids and cholesterol; membrane microdomain, which clusters functionally related lipids and proteins together.
2. Amphiphilic: Having both hydrophobic and hydrophilic regions, as seen in a phospholipid or many detergent molecules.
3. Phosphoglyceride: The main type of phospholipid in animal cell membranes, comprising two fatty acids and a polar head group attached to a three-carbon glycerol backbone.
4. Cholesterol: A lipid molecule with a characteristic four-ring steroid structure that is an essential component of the plasma membrane of animal cells.
5. Lipid droplet: An organelle surrounded by a lipid monolayer and containing neutral lipids, unlike other organelles, which are surrounded by lipid bilayers and contain an aqueous interior; prevalent in adipose cells.
6. Glycolipid: A lipid molecule with one or more sugar molecules covalently attached.
7. Lipid bilayer: The most common arrangement into which amphipathic lipids self-assemble, driven primarily by the hydrophobic force of the surrounding aqueous environment.