Biology Homeostasis PMDC Conceptual Practice
PMDC Verified Question 73 of 99
The homeostatic regulation of solute concentration and water balance between an organism's internal body fluids and its environment is defined as:
A
Thermoregulation
B
Osmoregulation
C
Deamination
D
Ultrafiltration
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option B: Osmoregulation
Concept: Definition of osmoregulation.

Solution: Osmoregulation is the active physiological control of osmotic pressure, fluid volume, and solute concentrations within an organism.

Why other options are incorrect:
  • Option A: Thermoregulation refers strictly to thermal heat balance.

  • Option C: Deamination is the enzymatic removal of an amino group from an amino acid.

  • Option D: Ultrafiltration is a mechanical process of pressure-driven fluid movement across membranes.

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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