Absorption and Translocation of Elements

IMPORTANT

Absorption and Translocation of Elements: Overview

This Topic covers sub-topics such as Donnan Equilibrium, Mass Flow Hypothesis, 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

HARD
IMPORTANT

According to carbonic acid exchange theory of mineral salt absorption by roots, which of the following is incorrect?

EASY
IMPORTANT

Who proposed carrier theory?

EASY
IMPORTANT

How is Donnan equilibrium calculated?

EASY
IMPORTANT

How does the Donnan membrane equilibrium work?

EASY
IMPORTANT

How does the Donnan membrane equilibrium work?

EASY
IMPORTANT

What is Donnan membrane effect?

EASY
IMPORTANT

What is Donnan membrane equilibrium?

HARD
IMPORTANT

According to carrier concept theory the plasma membrane is permeable to free ions.

HARD
IMPORTANT

The _____ theory was proposed by Vanden Honert.

HARD
IMPORTANT

Explain the carrier concept theory.

EASY
IMPORTANT

Which of the following is supplied when nutrients are deficient in the soil?

EASY
IMPORTANT

Which of the following is a macronutrient?

EASY
IMPORTANT

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

MEDIUM
IMPORTANT

Nostoc helps in the enrichment of soil with which of the following mineral?

MEDIUM
IMPORTANT

Which of the following role is played by the soil?

EASY
IMPORTANT

"Mineral ions are frequently remobilized" is applicable for

EASY
IMPORTANT

Mineral absorption is :

EASY
IMPORTANT

Sulphur is absorbed by plants as:

EASY
IMPORTANT

Which of the following are critical elements for agricultural crops?