Biology Circulation / Transport UHS 2023
PMDC Verified Question 11 of 54
The ____ describes how water and dissolved chemicals are carried through the cell wall and intercellular gaps of plants.
A
Apoplast theory
B
Symplast theory
C
Vacuolar theory
D
Cytoplasmic theory
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option A: Apoplast theory
Concept:

Water travels through plant cortex tissues via interconnected non-living and living spaces.

Formula:

None

Solution:

  • The apoplast pathway refers exclusively to the movement of water and solutes through the "dead" or non-living parts of the plant tissue.


  • This includes the porous cellulose cell walls and the intercellular air spaces, bypassing the living cytoplasm entirely until reaching the Casparian strip.


Why other options are incorrect:

  • Symplast theory: Describes water moving strictly through the living cytoplasm and plasmodesmata.

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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