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What are chemical messengers?...

What are chemical messengers?

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Endocrine glands control and co-ordinate the body functions through secreting certain chemical messengers called hormones. Due to certain physiological reasons, the blood glucose level of otherwise normal persons increases. What is the chemical nature of this hormone? Discuss its role in the body.

SURA PUBLICATION-QUARTERLY MODEL QUESTION PAPER-Subjective Questions
  1. Draw diagrams to represent the types of concentric vascular bundles.

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  2. (a) Site of protein synthesis in a cyton. (b) Membranes covering the...

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  3. What are chemical messengers?

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  4. What are allosomes?

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  5. A cricket ball of mass 100 g moving with a speed of 20 ms^(-1) is bro...

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  6. Differentiate mass and weight.

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  7. Draw a ray diagram to show the image formed by a convex lens when the ...

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  8. Distinguish between linear and areal or superficial expansion.

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  9. Distinguish between cation and an anion .

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  10. Vinu dissolves 50 g of sugar in 250 ml of hot water, sarath dissolves ...

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  11. Describe the structure of the human ovum with a neat labelled diagram.

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  12. On analysing an impure sample of sodium chloride, the percentage of ch...

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  13. Name the components of nervous system.

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  14. Draw a diagram to show sopre formation in Rhizopus.

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  15. A cricket ball of mass 25 g moving with a speed of 12 ms^(-1) is hit b...

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  16. (i) Differentiate convex lens and concave lens. (ii) Why does the sk...

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  17. An electric iron consumes energy at the rate of 420 W when heating is ...

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  18. (i) Calculate the % of each element in calcium carbonate. (ii) Give ...

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  19. (i) Metal A belongs to period 3 and group 13. A in red hot condition r...

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  20. (i) What are the structures involved in the protection of brain? (ii...

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