Question:
Given below are two statements about absorption of water in plants.
Statement I - Rate of water absorption is maximum at soil temperature between 40 to \(60^{\circ} \mathrm{C}\).
Statement II - High concentration of solutes in soil water increases the rate of absorption of water.
In the light of above statements, select the correct option given below:
Given below are two statements about absorption of water in plants.
Statement I - Rate of water absorption is maximum at soil temperature between 40 to \(60^{\circ} \mathrm{C}\).
Statement II - High concentration of solutes in soil water increases the rate of absorption of water.
In the light of above statements, select the correct option given below:
Show Hint
Check the optimum soil temperature and the effect of solute concentration in soil water.
Updated On: Nov 13, 2026
Both statement I and statement II are correct.
Both statement I and statement II are incorrect.
Statement I is correct but statement II is incorrect.
Statement I is incorrect but statement II is correct.
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The Correct Option is B
Solution and Explanation
Step 1: Understanding the Concept
Water absorption by roots depends on soil temperature and the concentration of soil solution.
Step 2: Statement I
Absorption is best at a soil temperature of about 20 to 30 \(^{\circ}\text{C}\). Above 40 \(^{\circ}\text{C}\) it falls because roots are damaged, so Statement I is incorrect.
Step 3: Statement II
A high concentration of solutes in the soil water lowers its water potential, which reduces absorption. So Statement II is incorrect.
Final Answer:
Both statements are incorrect. \[ \boxed{\text{(B) }\text{Both statement I and statement II are incorrect.}} \]
Water absorption by roots depends on soil temperature and the concentration of soil solution.
Step 2: Statement I
Absorption is best at a soil temperature of about 20 to 30 \(^{\circ}\text{C}\). Above 40 \(^{\circ}\text{C}\) it falls because roots are damaged, so Statement I is incorrect.
Step 3: Statement II
A high concentration of solutes in the soil water lowers its water potential, which reduces absorption. So Statement II is incorrect.
Final Answer:
Both statements are incorrect. \[ \boxed{\text{(B) }\text{Both statement I and statement II are incorrect.}} \]
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