Which Molecules or Substances Contain, or Are Derived From, Fatty

question 85

Multiple Choice

Which molecules or substances contain, or are derived from, fatty acids?

• A) beeswax
• B) prostaglandins
• C) sphingolipids
• D) triacylglycerols
• E) All of these contain or are derived from fatty acids.

---

Definitions:

Proximal Tubule

The portion of the nephron in the kidney that processes filtrate from the glomerulus, involved in reabsorption and secretion.

Vasa Recta

A series of straight capillaries in the kidney that serve as counter-current exchangers, playing a key role in the concentration of urine.

Juxtaglomerular Apparatus

A structure in the kidney that helps regulate blood pressure by secreting renin in response to blood pressure changes.

Macula Densa Cells

Specialized cells located in the distal convoluted tubule of the kidney that help regulate blood pressure and filtration rate.