Biology Circulation / Transport MDCAT 2019
PMDC Verified Question 41 of 54
Four plants are present in different environmental conditions. Plant A is present in warm climate with continuous rainfall, plant B is present in a cool forest, plant C is present in warm climate with little breeze while plant D is present in warm climate high wind speed. Which one of the above plants will have highest rate of transpiration?
A
Plant B
B
Plant C
C
Plant D
D
Plant A
Tap any option to test your recall and reveal the step-by-step Propolis autopsy.

Propolis Cognitive Error Autopsy

Official Correct Choice:
Option C: Plant D
Concept:

The rate of transpiration depends heavily on external environmental factors like temperature, wind, and humidity.

Formula:

None

Solution:

  • High temperatures increase the rate of evaporation of water from the mesophyll cells.


  • High wind speed continuously removes the saturated air around the leaf, maintaining a steep water vapor concentration gradient.


  • Plant D experiences both conditions, maximizing transpiration.


Why other options are incorrect:

  • Continuous rainfall: Creates high humidity, minimizing the concentration gradient.


  • Cool forest: Lower temperatures reduce evaporation rates.

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 Circulation / Transport 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