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प्रश्न
Choose the correct answer:
Wilting of plants occurs when ____________
पर्याय
phloem is blocked.
xylem is blocked.
a few old roots are removed.
both xylem and phloem are blocked.
उत्तर
Wilting of plants occurs when xylem is blocked
APPEARS IN
संबंधित प्रश्न
the exact location of the Lenticels
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 |
Give reason for the following:
If you uproot a plant from the soil, its leaves soon wilt.
Choose the correct answer:
Which one is semi-permeable?
The diagram given below represents the result of an experiment conducted on two freshly taken shoots of a green herbaceous plant. The lower ends dip in the water.
(i) What is the aim of the experiment?
(ii) Some parts of the stem in both the shoots have been removed. Name the conducting tissue in shoot A and in shoot B, that has been removed.
(iii) What are the results of this experiment?
Give Technical Term for the following.
The tissue responsible for the ascent of sap in plants.
Plasma Membrane is ______.
In soil which of the following type of water is available for absorption by plant roots?
How many regions are there in a typical root?
Explain about the factors that affect water absorption.
