Multiple choice

Ascent of sap can be explained by _______ experiment

  1. Thistle-funnel

  2. Potato osmoscope

  3. Ringing

  4. Capillary Force
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

The ringing experiment (girdling) involves removing a ring of bark (phloem) from a plant stem while leaving the xylem intact. This demonstrates that organic nutrients (sugars) are transported through the phloem, as food accumulates above the ringed portion, causing swelling. The ringing experiment proves the existence and direction of phloem transport (translocation), which is part of the sap ascent mechanism.

Keep practicing — related questions