Which of the following does not operate in the carrier concept of active absorption of minerals?
A
Electron transport
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B
Contractile protein
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C
Protein lecithin
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D
Ascending water stream
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Solution
The correct option is D Ascending water stream
Plants absorb minerals from the soil in the form of inorganic ions. The process of mineral absorption and water absorption are separate processes occur in plants. Water absorption takes place actively by root pressure whereas mineral absorption takes place actively with the help of carrier proteins.
So the correct answer is 'Ascending water stream'.