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प्रश्न
Process of ascent of sap in plants occurs by ______.
विकल्प
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
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:
Absorption of water from soil takes place by __________
Multiple Choice Question:
Water will be absorbed by the root hairs when:
A thin strip of epidermal cells of a leaf was observed in a drop of water. They all looked turgid and normal.
(a) Draw a diagram of such a cell.
(b) Draw a diagram of a cell if this strip is transferred to a strong concentrated solution of sugar. What is term used for the effect on the cells ?
Most plant cells and tissues constitutes _____ % water.
________ type of tissues are present in epiphytic roots.
From which type of cells, root hair is originated
Identify the zone in wbkh root hair occurs.
How many regions are there in a typical root?
What is peculiarity of epiphytic plants like orchids?
