Lipid digestion and absorption — Flashcards

Flashcard 1: Pancreatic lipase is inactivated by _____ duodenal pH (high or low)

Answer: low

Flashcard 2: One function of cholecystokinin is to increase secretion of _____ enzymes

Answer: pancreatic

Flashcard 3: _____ gland enzymes liberate vitamin B12 from animal-derived proteins

Answer: Gastric

Flashcard 4: Mucus is secreted into the GI tract via _____ cells in the stomach, duodenum, salivary glands, and pancreas

Answer: mucous

Flashcard 5: L-amino acids are transported from the intestinal lumen into the cells by _____-mediated cotransport

Answer: Na+

Flashcard 6: Normally, 95% of bile acids in the ileum are recycled back to the liver through _____ circulation

Answer: enterohepatic

Flashcard 7: satiety

Answer: ventromedial area of the hypothalamus

Flashcard 8: What is the function of the area postrema?

Answer: Chemoreceptor trigger zone (CTZ) / Vomiting center

Extra: The area postrema is a circumventricular organ located in the medulla (floor of the 4th ventricle) that lacks a blood-brain barrier, allowing it to detect emetic toxins in the blood.

Flashcard 9: Give two cell types rich in rough endoplasmic reticulum (RER).

Answer: intestinal goblet cells, plasma cells

Flashcard 10: Is the plasma membrane symmetric or asymmetric?

Answer: asymmetric interior vs exterior asymmetric regionally on same side