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प्रश्न
Mention whether the following statement is true (T) or false (F) and give an explanation in support of your answer.
Guttation in plants occurs maximum at midday.
पर्याय
True
False
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उत्तर
This statement is false.
Explanation:
Guttation occurs due to excessive root pressure. It is at its maximum when root pressure is at its maximum, which occurs in the early mornings or at night. This is because during these times, transpiration is very low and water absorption is very high.
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संबंधित प्रश्न
Match the items in column I with those in column II
| Column I | Column II | ||
| (a) | Xylem | (i) | semi - permeable |
| (b) | Phloem | (ii) | permeable |
| (c) | Cell membrane | (iii) | downward flow of sap |
| (d) | Root pressure | (iv) | upward flow of water |
| (e) | Cell wall | (v) | guttation |
Differentiate between the following:
Guttation and bleeding
Mention whether the following statement is true or false. Correct the false statement by altering the last word only.
Xylem is the water conducting tissue in plants.
Concentration of mineral nutrient elements is higher inside the root hairs than in the surrounding soil. How do roots take them in from the soil?
How is root hair adapted for the absorption of water from the soil?
Choose the correct answer:
Wilting of plants occurs when ____________
How is root hair structurally adapted for absorption of water from the soil?
A few RBC’s were kept in three test tubes containing isotonic, hypotonic and hypertonic solutions. What will be the expected observations after a few hours? Explain.
Fill in the Blank
Leaves get wilted if _________ is removed from the plant.
Inner layer of root hair is made up of ______.
