QUESTION 14 To enhance the release of mineral nutrients from soil particles, pla

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QUESTION 14 To enhance the release of mineral nutrients from soil particles, plant roota may Exude positively charged organic acids and protons (H+) Exude negatively charged organic bases and hydroxide ions (OH- Exude sugars to promote microbial growth Exude water to hydrate the soil Exude humus to inerease porosity and enhance vater retention QUESTION 15 If a plant had a mutation that prevented it from forming a casparian strip, water and any and all dissolved solutes could move freely from the soil to the xylem and up to the leaves of the plant True O False

Explanation / Answer

Question 14

To enhance the release of mineral nutrient from soil particles, plant roots use ATP to transport positively charged organic acids and proton ions (H+) out of cell.

These positive ions carries minerals from the soil in the form of negative ions.

Negative mineral ions in conjunction with positive ions come across the plasma membrane.

The correct answer is A or 1’st i.e. Exude positively charged organic acids and protons (H+)

Question 15

If a plant had a mutation that prevented it from forming a casparian strip around cells of plant, the water and other solutes from soil can be easily travel towards leaves of plant because of capillary action.

So the answer is A. or 1st option which is True

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