Transport in Plants
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Avg score: 4% • Most missed: “Plants die from prolonged waterlogging because [1997]”
Transport in Plants
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25 Questions

1. Movement of ions or molecules in adirection opposite to that of prevailingelectrochemical gradient is known as[2000]
2. In terrestrial habitats - temperatureand rainfall conditions are influenced by[1992]
3. Which of the following can fixatmospheric nitrogen? [1995]
4. The most widely accepted theory forascent of sap in trees is [1991]
5. Plants die from prolonged waterlogging because [1997]
6. Phenyl mercuric acetate (PMA) resultsin [1988]
7. In soil - the water available for rootabsorption is [1991 - 99]
8. Sulphur is an important nutrient foroptimum growth and productivity in[2006]
9. Water potential in the leaf tissue ispositive (+) during [1997]
10. Which of the following plant is foundto have minimum transpiration [2001]
11. Transpiration is least in [1988]
12. Two cells A and B are contiguous.Cell A has osmotic pressure 10 atm - turgor pressure 7 atm and diffusionpressure deficit 3 atm. Cell B hasosmotic pressure 8 atm - turgor pressure3 atm and diffusion pressure deficit 5atm. The result will [2007]
13. Stomata of a plant open due to[2003]
14. Which of the following criteria doesnot pertain to facilitated transport?[NEET 2013]
15. Bidirectionaltranslocationminerals takes place in [1997]
16. Water potential of actively absorbingcells is [1999]
17. A bottle filled with previouslymoistened Mustard seeds and water wasscrew capped tightly and kept in acorner. It blew up suddenly after abouthalf an hour. The phenomenon involvedis [1990]
18. Which one of the followingstatements is correct? [2007]
19. If a cell A with DPD 4 bars isconnected to cell B - C - D whose OP andTP are respectively 4 and 4 - 10 and 5and 7 and 3 bars - the flow of water willbe [1998]
20. Water movement between cells is dueto [1992]
21. The movement of mineral ions intoplant root cells as a result of diffusion iscalled
22. Which of the following is used todetermine the rate of transpiration inplants? [1992]
23. The translocation of organic solutesin sieve tube members is supported by[2006]
24. Stomata open and close due to [1988 - 2002]
25. The rupture and fractionation do notusually occur in the water column invessel/tracheids during the ascent ofsap because of [2008]

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