Kaplan Nursing Entrance Practice Exam 2026 – The All-in-One Guide to Exam Success!

Chylomicrons play a crucial role in fat metabolism, particularly in the absorption and transport of dietary lipids. These lipoprotein particles are formed in the intestinal mucosa after the ingestion of fats. Once created, chylomicrons enter the lymphatic system, where they are transported through the lymphatic fluid before eventually reaching the bloodstream. The primary function of chylomicrons is to carry triglycerides from the intestines to various tissues in the body, where they can be utilized for energy or stored for future use.

Other responses do not accurately reflect the function of chylomicrons. While oxygen transport is vital for cellular respiration, it is primarily the role of red blood cells and hemoglobin, not chylomicrons. The immune system's defense against pathogens is a function of various components such as white blood cells and antibodies, rather than chylomicrons. As for supplying nutrients to neurons, while fats are crucial for maintaining cellular structure and function in neurons, chylomicrons specifically do not transport nutrients directly to neurons; their primary role is lipid transport throughout the body via the lymphatic and circulatory systems.