⇦ | ⇨ |
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: - Find correct Match – Name of the animal, characteristics,and the phylum/class :
- The rhizoids of Funaria are
- Approximately seventy percent of carbon-dioxide absorbed by the blood will
- Transpiration and root pressure cause water torise in plants by :
- Global agreement in specific control strategies to reduce the release of ozone
Topics: Transport and Nutrition in Plants
(163)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Find correct Match – Name of the animal, characteristics,and the phylum/class :
- The rhizoids of Funaria are
- Approximately seventy percent of carbon-dioxide absorbed by the blood will
- Transpiration and root pressure cause water torise in plants by :
- Global agreement in specific control strategies to reduce the release of ozone
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.
Share this page with your friends
Leave a Reply