Exam 19: Lipids

Phosphoacylglycerols are less soluble in water than triacylglycerols.

Which statement is not true?

Aldosterone regulates blood pressure and volume by controlling the concentration of Na⁺ and K⁺ in body fluids.

Which is not an anabolic steroid?

Unlike most oils, which type of fatty acid is most common in coconut oil?

Which compound has the lowest melting point?

Eicosanoids are a group of biologically active compounds containing 20 carbon atoms derived from the fatty acid arachidonic acid.

Triacylglycerols are stored in _____ cells below the skin and concentrated in some regions of the body.

The coating that surrounds and insulates nerve cells, the myelin sheath, is particularly rich in sphingomyelins, and is vital for proper nerve function.

In order for cholesterol to be transported from where it is synthesized in the liver to the tissues, it combines with phospholipids and proteins to form small water-soluble spherical particles called lipozymes.

Which lipid has the lowest melting point?

There is only one polar bond in Vitamin D4 (structure shown).

The compound below is a mixed triacylglycerol formed from lauric, myristic, and linoleic acids.

Cetyl palmitate, shown below, is a component of spermaceti wax isolated from the heads of sperm whales, and is used in cosmetics. In which solvent would cetyl palmitate be expected to have the greatest solubility?

Prostaglandins are a group of carboxylic acids that contain a five-membered ring, and are responsible for inflammation.

Lipids are defined as biomolecules that contain fatty acids as part of their structure.

High-density lipoproteins (HDLs)transport cholesterol from where it is synthesized, to the tissues.

What is the main component of the cell membrane?

The compound shown below is classified as what type of a lipid?

Which is a hydrolyzable lipid?