Absorption and Translocation of Elements
Absorption and Translocation of Elements: Overview
This topic covers concepts such as Passive Absorption of Minerals, Active Absorption of Minerals, Carrier Concept, Protein-lecithin Theory, Ion Exchange Theory, Mass Flow Hypothesis, Absorption of Minerals by simple diffusion, etc.
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?
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
Phloem sap is mainly ____
Sinks are related to
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.
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.
Which of the following statements will not hold true if a plant is grown in only sand (S), only clay (C) and only humus (H)?
According to carbonic acid exchange theory of mineral salt absorption by roots, which of the following is incorrect?
Which of the following causes transport of substances by mass flow?
