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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.
APPEARS IN
संबंधित प्रश्न
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 the guidelines 1 to 4.
(ii) Which is the process that enables the passage of water from the soil into the root hair?
(iii) Name the pressure that is responsible for the movement of water in the direction indicated by the arrows. Define it.
(iv) Due to an excess of this pressure sometimes drops of water are found along the leaf margins of some plants especially in the early mornings. What is the phenomenon called?
(v) Draw a well labelled diagram of the root hair cell as it would appear if an excess of fertiliser is added to the soil close to it.
State whether the following statement is true or false. Rewrite the false statement correctly.
Water absorption mainly occurs through the root-hair.
Choose the correct answer:
Absorption of water from soil takes place by __________
How is root hair structurally adapted for absorption of water from the soil?
Name the following:
Water is absorbed from the soil by which part.
Write a note on the morphological structure of the root.
Epiphytic plants like orchids absorb water vapours from air with the help of ______ having special tissue called velamen.
Roots of the plants absorb water from the soil through the process of ____________.
Draw a neat and proportionate diagram of root hair and label mitochondria, nucleus and vacuole.
