The concentrations of 2 substances in the amniotic fluid of pregnant women are graphed below. The two curves most likely correspond to which of the following?

Question

The concentrations of 2 substances in the amniotic fluid of pregnant women are graphed below.  The two curves most likely correspond to which of the following?

Quizplus · Accepted Answer

Eductional Objective: The amount and quality of surfactant synthesis increase with fetal lung maturity. Increased phosphatidylcholine (lecithin) and phosphatidylglycerol, as well as reduced sphingomyelin, are amniotic fluid indicators of maturity throughout late gestation.

The Concentrations of 2 Substances in the Amniotic Fluid of Pregnant