Which of the following associations about lipids is false?

What is the most accurate description of the given compound?

Arachidonate is a precursor for all of the following except __________.

From what type of molecule is vitamin A derived from?

What hormone does this structure represent?

Which of the following are true about phospholipids in structure?

I. Phospholipids consist of a polar group and nonpolar fatty acids, connected by glycerol.

II. Glycerophospholipids are a type of phospholipids and are composed of choline, phosphate, glycerol, and two fatty acids.

III. Sphingolipids, like sphingomyelin, are a type of phospholipids that have choline, phosphate, sphingosine groups and only one fatty acid.

Organic peanut butter contains both saturated and unsaturated fats.

What is the difference between saturated and unsaturated fats?

Based on the structure of the molecule shown below, what is the most likely identification of this compound?

What is the difference between linoleic and alpha-linolenic acid and what is their importance?

I. They are essential fatty acids.

II. Linoleic acid is unsaturated, has 2 double bonds and has an 18-carbon chain.

III. Alpha-linolenic acid is an eighteen-carbon molecule with 3 double bonds.

IV. Apha-linolenic acid is a seventeen-carbon molecule with 3 carbon double bonds.

What is the name of the pictured fatty acid?