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What are the functions performed by hist...

What are the functions performed by histamine in the body?

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Histamine is a potent vasodilator. (i) It contracts muscles in the gut and bronchi, (ii) it relaxes some other muscles, such as those in the walls of fine blood vessels, (iii) it is responsible for congestion in the nose associated with common cold and allergies, (iv) it stimulates the release of pepsin and HCl in the stomach.
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CHHAYA PUBLICATION-CHEMISTRY IN EVERYDAY LIFE -SOLVED NCERT EXEMPLAR PROBLEMS
  1. How are transparent soaps manufactured?

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  2. What is the advantage of using antihistamines over antacids in the tre...

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  3. What are the functions performed by histamine in the body?

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  4. With the help of an example explain how do tranquilizers control the f...

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  5. Why are certain drugs called enzyme inhibitors?

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  6. What are fillers and what role these fillers play in soap?

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  7. Sugar is the main source of energy as it produces energy on metabolic ...

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  8. Pickles have a long shelf life and do not get spoiled for months, why?

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  9. What Is the difference between saccharin and saccharic acid?

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  10. Name an artificial sweetener which is derivative of sucrose.

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  11. Name two alpha -amino acids which form a dlpeptide which is 100 times ...

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  12. Aspartame is unstable at cooking temperature, where would you suggest ...

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  13. Sodium salts of some acids are very useful as food preservatives. Sugg...

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  14. Explain the role of allosteric site in enzyme inhibition?

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  15. How are receptor proteins located in the cell membrane?

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  16. What happens when the bond formed between an enzyme and an inhibitor i...

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  17. Assertion (A): Penicillin (G) is an antihistamine. Reason (R): Peni...

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  18. Assertion (A): Sulpha drug contain sulphonamide group. Reason (R) ...

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  19. Assertion (A): Receptors are crucial to body's communication process. ...

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  20. Assertion (A): Enzymes have active sites that hold substrate molecule ...

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