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Class 11 Biology Practice Test: Mineral Nutrition - Mechanism of Absorption of Nutrients
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Class 11 Biology Practice Test: Mineral Nutrition - Mechanism of Absorption of Nutrients
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25 Questions

1. Which of the following carbohydrates acts as food for the plants?
2. Which of the following statements if wrong about manganese toxicity?
3. Mineral ions are exported from older parts to younger parts of plant before leaf fall.
4. What are transport proteins?
5. Which of the following carbohydrates acts as food for the plants?
6. Minerals are transported through _________ along the _________ stream of water.
7. Any mineral ion concentration that reduces that dry wt. of tissues by 10% is called as ___________
8. A small amount of exchange of materials does take place between xylem and phloem.
9. Which of the following is not a chief sink for the mineral elements?
10. Statement A: The outward movement is influx.
Statement B: The inward movement is efflux.
11. A small amount of exchange of materials does take place between xylem and phloem.
12. Which of the following statements if wrong about manganese toxicity?
13. Any mineral ion concentration that reduces that dry wt. of tissues by 10% is called as ___________
14. Which of the following elements do not get translocated to younger parts?
15. Where does the unloading of mineral ions occur in the plants?
16. Which of the following is not a chief sink for the mineral elements?
17. After active or passive absorption of all the mineral elements, how are minerals further transported?
18. Mineral ions are exported from older parts to younger parts of plant before leaf fall.
19. Statement A: The outward movement is influx.
Statement B: The inward movement is efflux.
20. Generally, from which of the following parts of the plants, the minerals are remobilised?
21. The root endodermis because of the layer of the cuticle can actively transport ions in all the directions.
22. Statement A: The process of absorption of minerals is divided into 2 phases.
Statement B: One phase of absorption is passive while the other is active.
23. Statement A: The process of absorption of minerals is divided into 2 phases.
Statement B: One phase of absorption is passive while the other is active.
24. Statement A: Minerals are present in the soil in the form of charged particles.
Statement B: Concentration of minerals is lower in root than in soil.
25. Where does the unloading of mineral ions occur in the plants?

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