Biology Digestion/Nutrition MDCAT 2015
PMDC Verified Question 45 of 48
The emulsification of fats is the role of:
A
Saliva
B
Gastrin
C
Pancreatic juice
D
Bile
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option D: Bile
Concept:

Lipid digestion requires mechanical dispersion to increase surface area prior to enzymatic hydrolysis.

Formula:

N/A

Solution:

  • Bile is a yellowish-green fluid produced by the liver and stored in the gallbladder.
  • It contains no digestive enzymes itself, but is exceptionally rich in bile salts and phospholipids.
  • These components physically break down large lipid globules into an emulsion of tiny droplets, making them highly accessible to pancreatic lipases.


Why other options are incorrect:

Saliva initiates carbohydrate digestion. Gastrin is a hormone. Pancreatic juice provides the enzymes for chemical digestion, but relies on bile to do the physical emulsification first.

Quality & Fidelity Assurance: Every question on BeambePrep is rigorously curated against the official PMDC syllabus with zero filler, zero out-of-syllabus content, and zero typos. When an authentic past paper originally contained a historical mistake or ambiguity from the examining board (such as UHS or NUMS), BeambePrep faithfully reflects the original paper while detailing the nuance and scientific consensus in the autopsy above.

Previous Question All Digestion/Nutrition MCQs Next Question

Want to solve full-length papers under timed exam conditions?

Practice with zero-scroll lockdown sprints, dynamic latency zone timers, live peer selection telemetry, and the automated Amber mistake recovery loop.

Enter Arena Sprint iOS App Android App