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What is 'critical concentration' of esse...

What is 'critical concentration' of essential elements?

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Concentration of essential element below which plant growth is retarded.
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(i) The deficiency of any element can cause multiple symptoms. (ii) Same symptoms may be caused by the deficiency of one or several different elements. (iii) The concentration of the essential element below which plant growth is retarded is termed as critical concentration. Chlorosis is the loss of chlorophyll due to deficiency of N, K, Mg, Fe, S, Mn, Zn Mo. Different plants respond differently to the deficiency of the same element. How many of the above statement are correct?

SUBHASH PUBLICATION-IPUC ANNUAL EXAMINATION-2016-PART-C
  1. What is 'critical concentration' of essential elements?

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  3. Give the meaning of the following with an example each. Parallel ven...

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  4. Give the meaning of the following with an example each. Opposite Phy...

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  5. Give the meaning of the following with an example each. Trimerous fl...

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  6. Mention any six secondary metabolites of plants.

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  7. Mention the phases of growth.

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  8. Briefly explain the digestion of carbohydrates in small intestine.

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  9. Summarise the mechanism of transport of oxygen in blood.

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  10. Mention any three disorders of human excretory system.

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  11. Describe the Diplontic life cycle pattern of plant kingdom.

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  12. Classify the flowers based on the position of thalamus giving an examp...

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  13. Explain the steps involved in catalytic cycle of an Enzyme action.

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  14. What is fermentation? Name any two enzymes involved in this process.

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  15. List out any three physiological role of Gibberellins in plant growth.

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  16. Mention the importance of the following with reference to Human Digest...

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  17. Mention the importance of the following with reference to Human Digest...

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  18. Mention the importance of the following with reference to Human Digest...

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  19. Describe the mechanism of gaseous exchange in alveolous and pulmonary ...

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  20. Name any three excretory structures in invertebrates.

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