Absorption and Translocation of Elements
Absorption and Translocation of Elements: Overview
This Topic covers sub-topics such as Donnan Equilibrium, Ion Exchange Theory, Carrier Concept, Protein-lecithin Theory, Passive Absorption of Minerals, Active Absorption of Minerals and, Soil as Reservoir of Essential Elements
Important Questions on Absorption and Translocation of Elements
According to carbonic acid exchange theory of mineral salt absorption by roots, which of the following is incorrect?
A plant cell absorbs salts in:
Initial phase of ion uptake
Uptake of minerals from soil is mainly_____ due to_____ soil solution.
(a) Soil is reservoir of all mineral elements that are essential for the proper growth and development of plants.
(b) Initial uptake of minerals into the symplast is slow.
(c) Uptake of minerals in inner space is rapid.
Which of the following is supplied when nutrients are deficient in the soil?
Which of the following is a macronutrient?
Identify the correct statement about the role of soil in the plant growth
a. Supplies minerals to the plants
b. Supplies aeration to the roots
c. Acts as stabilising matrix to the plants
d. Provides habitat for soil microbes like nitrogen-fixing bacteria
Nostoc helps in the enrichment of soil with which of the following mineral?
Which of the following role is played by the soil?
"Mineral ions are frequently remobilized" is applicable for
Oxalophytes grow on
All mineral salts are absorbed in cells as
Minerals are absorbed in the form of
Respiratory inhibitor the rate of mineral absorption.
Mineral absorption is :
By which two methods does absorption of mineral ions take place?
The energy of metabolism, used in the uptake of ions, is determined by:
By which method most mineral accumulation occurs?
In the initial phase of mineral ion absorption, there is a rapid uptake of ions into ___ space of cells. lons absorbed in this phase are___ exchangeable. It is___ uptake as it___ the expenditure of metabolic energy.
