Advertisements
Advertisements
प्रश्न
Process of ascent of sap in plants occurs by ______.
विकल्प
cortex
xylem
phloem
cambium
Advertisements
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.
APPEARS IN
संबंधित प्रश्न
Name the following:
The process by which water enters root hairs.
Choose the correct answer:
Absorption of water from soil takes place by __________
A few RBC’s were kept in three test tubes containing isotonic, hypotonic and hypertonic solutions. What will be the expected observations after a few hours? Explain.
The diagram given below represents the result of an experiment conducted on two freshly taken shoots of a green herbaceous plant. The lower ends dip in the water.
(i) What is the aim of the experiment?
(ii) Some parts of the stem in both the shoots have been removed. Name the conducting tissue in shoot A and in shoot B, that has been removed.
(iii) What are the results of this experiment?
In the zone of absorption, epidermal cells form unicellular hair-like extensions called ________.
Which part of the root helps in maximum absorption of water and minerals?
How many regions are there in a typical root?
Roots of the plants absorb water from the soil through the process of ____________.
Root hair is a cytoplasmic extension of ______.
Explain about the factors that affect water absorption.
