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Root pressure is due to
Options
(a) passive transport
(b) gravitation
(c) active transport
(d) diffusion
Correct Answer:
active transport
Explanation:
As various ions from the soil are actively transported into the vascular tissues of the roots, water follows its potential gradient and increases the pressure inside the xylem. This positive pressure is called root pressure, and can be responsible for pushing up water to small heights in the stem.
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Topics: Transport and Nutrition in Plants
(163)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Angiosperms have dominated the land flora primarily because of their
- Energy currency (reservoir) of the cells is
- If a live earthworm is pricked with a needle on it outer surface without damaging
- The net gain of energy from one molecule of sucrose in aerobic respiration is
- Cells are connected by plasmodesmata, the system is
Topics: Transport and Nutrition in Plants (163)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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