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प्रश्न
उत्तर
(i) The epidermis and endodermis of root hairs are permeable to water.
(ii) Root hairs have a very large surface area.
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संबंधित प्रश्न
Differentiate between the following:
Guttation and bleeding
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:
The water is translocated upwards from the roots through _____________
Give Technical Term for the following.
Phenomenon of absorption of water by surface attraction.
Multiple Choice Question:
The most widely accepted theory for ascent of sap is ______.
Which part of the root helps in maximum absorption of water and minerals?
____________plants like orchids absorb water vapours from air with the help of epiphytic roots having special tissue called velamen.
Identify the part of the plants which is responsible for maximum absorption of water.
Root hair is a cytoplasmic extension of ______.
