The rupture and fractionation do not usually occur in the water column in

The Rupture And Fractionation Do Not Usually Occur In The Biology Question

The rupture and fractionation do not usually occur in the water column in vessel / tracheids during the ascent of sap because of

Options

(a) lignified thick walls
(b) cohension and adhesion
(c) weak gravitational pull
(d) transpiration pull

Correct Answer:

cohension and adhesion

Explanation:

The rupture and fractionation do not usually occur in the water column in vessel / tracheids during the ascent of sap because of cohension and tension. The water molecules have a great mutual attraction with each other or in other words we can say that they have tremendous cohesive power which is sometimes as much as 350 atmospheres. Thus, the transpiration pull develops a negative pressure in the uppermost xylem cells. It is transmitted from there into the xylem of stems, and from there into the xylem o

Related Questions:

  1. Which of the following organism possesses characteristics of both a plant and an animal?
  2. Which one of the following is wrong about Chara?
  3. The stage during which separation of the paired homologous chromosomes begins
  4. Unisexuality of flowers prevents
  5. In the following table identity the correct matching of the crop its disease

Topics: Transport and Nutrition in Plants (163)
Subject: Biology (4253)

Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score

18000+ students are using NEETLab to improve their score. What about you?

Solve Previous Year MCQs, Mock Tests, Topicwise Practice Tests, Identify Weak Topics, Formula Flash cards and much more is available in NEETLab Android App to improve your NEET score.

NEETLab Mobile App

Share this page with your friends

Be the first to comment

Leave a Reply

Your email address will not be published.


*