Biology Digestion/Nutrition SZABMU 2024 Reconduct
PMDC Verified Question 9 of 48
The pH of pancreatic juice is:
A
0.8
B
8.0
C
0.7
D
0.07
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option B: 8.0
Concept:

Digestive juices vary radically in pH to suit the optimal functioning range of their specific enclosed enzymes.

Formula:

N/A

Solution:

  • Gastric chyme entering the duodenum is highly acidic (pH ~2).
  • Pancreatic juice contains a massive concentration of bicarbonate ions (\(HCO_3^-\)), which makes it distinctly alkaline.
  • This alkalinity (with a typical pH around 8.0) neutralizes the incoming acid and creates the perfect basic environment for pancreatic lipases, amylases, and proteases to operate.


Why other options are incorrect:

Values like 0.7 or 0.8 are extremely acidic—more acidic than battery acid or standard stomach acid—and would instantly denature pancreatic enzymes.

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.

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