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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.
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उत्तर
Wilting of plants occurs when xylem is blocked
APPEARS IN
संबंधित प्रश्न
What part is played by the following in the uptake of water into the root hair?
The cell wall
Name the following:
Tissue concerned with upward conduction of water.
Three plants (a), (b) and (c) were placed in beakers containing coloured water. The water in each beaker was covered with a layer of oil. The leaves were removed from plant (b), while plant (c) was exposed to strong light.
(i) In which plant, (a), (b) or (c) would the water move up the fastest?
(ii) In which plant (a), (b) or (c), would the water move up slowly?
(iii) Why was the water covered with a layer of oil?
(iv) What is being investigated by this experiment?
Choose the correct answer:
Which one is semi-permeable?
Process of ascent of sap in plants occurs by ______.
Root hairs become flaccid, when fertilizers are added to the moist soil around it. Explain.
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?
Name the following:
Root hairs are the extension of which cells.
________ type of tissues are present in epiphytic roots.
Draw a neat and proportionate diagram of root hair and label mitochondria, nucleus and vacuole.
