EASY
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What is ion exchange theory?

Important Questions on Transport in Plants

EASY
What is the direction of movement of sugars in phloem?
EASY
A few drops of sap were collected by cutting across a plant stem by a suitable method. The sap was tested chemically. Which one of the following test results indicate that it is phloem sap?
MEDIUM
To overcome the abnormality of reduction in fruit production and transfer of carbohydrates, which nutrients should be mixed in soil?
MEDIUM
Which of the following role is played by the soil?
EASY
What is the role of soil in the plant nutrition process?
EASY
With reference to absorption of minerals, the term 'outer space' represents____ while 'inner space' represents___
EASY
Substances soluble in lipids move through the membrane:
EASY
Explain the role of soil as a reservoir of essential elements.
EASY
According to Munch theory, the cause of flow of soluble substances is
MEDIUM
According to carbonic acid exchange theory of mineral salt absorption by roots, which of the following is incorrect?
EASY
Differentiate between passive and active salt absorption.
EASY
"Mineral ions are frequently remobilized" is applicable for
HARD
Which of the following statements about mineral absorption in plants is correct?
EASY
 Majority of the nutrients that are essential for the plant growth are present in the soil.
MEDIUM

Among the following, which biomolecule behaves as a carrier molecule of lipids in the blood?

HARD
 If oxygen content in the medium is less, then the rate of mineral absorption
MEDIUM
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)?
HARD
Find odd one out w.r.t. theories of active mineral absorption