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Water enters from soil into the root hairs due to
Options
(a) turgor pressure of root hair
(b) osmotic pressure of root hair
(c) suction pressure
(d) diffusion pressure
Correct Answer:
suction pressure
Explanation:
D.P.D. (diffusion pressure deficity) is the amount by which the diffusion pressure of a solution is lower than that of its pure solvent. The DPD of a cell denotes the net pressure that causes water to enter cell. DPD = OP – WP and since WP = TP thus DPD = OP – TP. D.P.D is also known as suction pressure.
Related Questions: - Which one of the following is not true about lichens?
- There is no DNA in:
- The first step in dark reaction of photosynthesis is
- A plasmolysed cell can be deplasmolysed by placing it in
- Entry of mineral ions in plant root cells by diffusion is
Topics: Transport and Nutrition in Plants
(163)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which one of the following is not true about lichens?
- There is no DNA in:
- The first step in dark reaction of photosynthesis is
- A plasmolysed cell can be deplasmolysed by placing it in
- Entry of mineral ions in plant root cells by diffusion 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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