Advertisements
Advertisements
प्रश्न
Name the following:
Name the process by which intact plants lose water in the form of droplets.
Advertisements
उत्तर
Guttation
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.
The figure shows a diagrammatic representation of the movement of certain substances inside the stem of a certain plant. Write five sentences on whatever you can explain about the processes or the arrangement of structures indicated in the diagram.
Note: - Each sentence must include one or more of the following four words, and each word can be used several times. Xylem, phloem, roots, leaves.
Choose the correct answer:
The water is translocated upwards from the roots through _____________
Root hairs become flaccid, when fertilizers are added to the moist soil around it. Explain.
Multiple Choice Question:
In soil, water available for absorption by root is ______.
________ type of tissues are present in epiphytic roots.
What is the composition of an outer layer of root hair?
Root hair occurs in the zone of ____________.
Roots of the plants absorb water from the soil through the process of ____________.
Explain about the factors that affect water absorption.
