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प्रश्न
Choose the correct answer:
Swelling of wooden doors during rains is caused by ___________
पर्याय
endosmosis
imbibition
capillarity
osmosis
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उत्तर
Swelling of wooden doors during rains is caused by imbibition
APPEARS IN
संबंधित प्रश्न
The phenomenon of loss of water through a cut stem or injured part of plant is called ___________.
Draw a magnified view of the root-hair, and describe, how it helps in the absorption of water from the soil.
Mention whether the following statement is true or false. Correct the false statement by altering the last word only.
The cell wall of the root cell is a differentially permeable membrane.
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.
Mention whether the following statement is true (T) or false (F) and give explanation in support of your answer.
Dry seeds when submerged in water swell up due to endosmosis.
Root hairs become flaccid, when fertilizers are added to the moist soil around it. Explain.
The figure given below is a diagrammatic representation of a part of the cross-section of the root in the root hair zone. Study the same and then answer the questions that follow :
(i) Name the parts indicated by guidelines ‘1’ to ‘5’
(ii) Is the root hair cell unicellular or multi-cellular?
(iii) Draw a labeled diagram of the root hair cell as it would appear if some fertilizer is added to the soil close to it.
(iv) Name the process responsible for the entry of water molecules from the soil into A1 and then A2.
(v) What pressure is responsible for the movement of water in the direction indicated by arrows?
(vi) How is this pressure set up?
Which part of the root helps in maximum absorption of water and minerals?
Root hair is a cytoplasmic extension of ______.
