A structural element common in all glycerophospholipids is:

Shown below is a common lipid. To which of the following lipid groups does this molecule belong? Triacylglycerol Ceramide Cholesterol CH₂ CH₂ Ganglioside Glycerophospholipid Monounsaturated fatty acid Polyunsaturated fatty acid Saturated fatty acid

Which property of phospholipids is responsible for the formation of phospholipid bilayers?

When phospholipids are carefully mixed with water they are observed to exhibit which of the following properties? a) Spontaneous organization into stable structures within the water environment, b) Orientation of the Phosphate parts of the molecule away from fatty acid (non-polar) environment of a bilayer, c) Hydrophilic orientation of the ionic section of the phospholipid molecules to the polar portions of the water molecules, d) All are true, e) None are true.

All phospholipids will have double bonds in their tails. True or False

What properties does a phospholipid head group impart to the lipid, and why is that useful for a cell?

Sort the descriptions into properties that describe either saturated phospholipids or unsaturated phospholipids. Saturated phospholipids have straight fatty acid tails have no double bonds in the fatty acid carbon chains fatty acid tails pack tightly together produce a fairly inflexible membrane at low temperatures Saturated and unsaturated phospholipids maintain some space between adjacent phospholipids are built upon a glycerol backbone Answer Bank Unsaturated phospholipids have bent fatty acid tails contain one or more double bonds within the fatty acid tails allow the membrane to remain fluid and flexible at low temperatures

Phospholipids form the main fabric of the plasma membrane. One feature of phospholipids is that when they are placed in an aqueous solution, they will self-assemble into a double layer (bilayer) that resembles the bilayer of the plasma membrane. This self-assembly occurs because phospholipids are hydrophilic at one end (the phospholipid head) and hydrophobic at the other end (the phospholipid tails). Drag the labels to their appropriate locations in the figure. 1. First, drag labels of Group 1 to targets (a) and (b) to indicate whether these environments are hydrophilic or hydrophobic. 2. Next, drag the phospholipid layers (Group 2) to targets (c) and (d) to indicate how they are oriented in the plasma membrane. 3. Finally, drag labels of Group 1 to targets (e), (f), and (g) to indicate which portions of the membrane protein are hydrophilic and which are hydrophobic. Group 1 extracellular hydrophobic fluid © hydrophilic plasma membrane Group 1 Group 2 (f membrane protein Group 1 Group…

When a small amount of oil is added to a beaker of water con phospholipids, the phospholipids will surround the oil droplets forming micelles. Draw several cartoon representations of phospholipid molecules (with a head and tails) to show the arrangement or orientation of phospholipids in a micelle.

Decide whether the following statements about phospholipids is correct below