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When is an element considered to be toxi...

When is an element considered to be toxic ?

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Any mineral ion cencentration in tissues that reduces the dry weight of tissues by about 10 percent is considered toxic.
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VIKRAM PUBLICATION ( ANDHRA PUBLICATION)-MINERAL NUTRITION -EXERCISES
  1. Which element is required for the formation of mitotic spidle ?

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  2. What is the role of sulphur in plant life ?

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  3. The micro essential mineral element which has been reported recently i...

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  4. Which element is necessary for the synthesis of the chief photosynthet...

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  5. What is photolysis of water ?

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  6. Which enzyme is activated by the 17th essential element ?

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  7. When is an element considered to be toxic ?

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  8. Which element when supplied in excess leads, to appearence of brown sp...

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  9. Name an anaerobic, free living, photo-hetrotrophic nitrogen fixing bac...

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  10. Which aquatic fern performs nitrogen fixation ?

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  11. Explain the role of the pink colour pigment in the root nodule of legu...

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  12. Apart from the cortical cells, which other cells are stimulated to div...

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  13. Which of the following can fix atmospheric nitrogen ?

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  14. What acts as oxygen scavenger in the legume - root nodule combination ...

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  15. In what why does aspargine differ from aspartic acid ?

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  16. Through which tissue the amino acids are transported inside the plant ...

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  17. Plants like the Pitcher and Venus fly trap have special nutritional ad...

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  18. Excess of maganese induce the deficiency of

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  19. What acts as a reservoir of essential elements for plants ? By what pr...

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  20. Fixation of nitrogen is a source for

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