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प्रश्न
Process of ascent of sap in plants occurs by ______.
पर्याय
cortex
xylem
phloem
cambium
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उत्तर
Process of ascent of sap in plants occurs by xylem.
Explanation:
The ascent of sap is the upward movement of water and dissolved mineral nutrients from the roots to the leaves against gravity. This process occurs exclusively through the dead, hollow tube-like elements of the xylem tissue, driven by driving forces like transpiration pull and root pressure. In contrast, phloem is responsible for distributing manufactured organic food, while the cortex assists in lateral transport and the cambium manages growth.
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संबंधित प्रश्न
Correct the following statement by changing the underlined word.
Xylem transports starch from the leaves to all parts of the plant body.
Match the items in column I with those in column II
| Column I | Column II | ||
| (a) | Xylem | (i) | semi - permeable |
| (b) | Phloem | (ii) | permeable |
| (c) | Cell membrane | (iii) | downward flow of sap |
| (d) | Root pressure | (iv) | upward flow of water |
| (e) | Cell wall | (v) | guttation |
Grapes shrink when immersed in a very strong sugar solution.” Explain.
Name the following:
The kind of cells that constitute the cortex of a root.
Name the following:
Name the process by which intact plants lose water in the form of droplets.
Mention, if the following statement is True or False. If false rewrite the wrong statement in its correct form:
Xylem is the water-conducting tissue in plants.
Write a note on the morphological structure of the root.
The tubular, colorless delicate prolongations of epidennal cells are seen in which region of root in plants?
The unbranched root hair in plants is formed from ____________.
