TOMORROW DISCUSION QUIZ AFTER SESSION

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REVISION QUESTIONS

1. list three alkaloids which are not basic and three alkaloids in which the Nitrogen is not in a heterocyclic ring

2. Mention four functions of alkaloids in the plant

3. Give an example of alkaloid which is amorphous solids

4. If possible with examples mention five chemical characteristics of alkaloids

5. Alkaloids can be named by various methods,give name of alkaloids which may be derived from
  
     a. Generic plant.......

     b. Specific name of the plant......
   
     c. Names of loves one........

     d. Common name of the plant.....

     e. Physiological action of the plant......

6. explain classification of alkaloids by the Hegnauer's classification

7.  Matching iterm
   
  1a.      A
    1. Skeletal muscle relaxants

    2. Smooth muscle relaxants

    3. Anthelmintic activity

    4. CNS stimulants

    5. Anticancer activity

            B

    a. lobeline
    b. strychnine
    c. d-tubocurine
    d. taxol
    e. papaverine
    f. arecoline
    g. codeine


2b.  A
 
   1. Valser's Reagents

   2. Dragendorff's reagent

   3. Wagner's reagent

  4. Hagner's reagent

  5. Tannic acid solution

         B

  a. produces brown or reddish brown ppt
  b. produces red brown ppt
  c. give buff coloured ppt
  d. produces white or yellow colour ppt
  e. produces orange red ppt
  g. produces blue ppt

8. Write biological sources of the following medicinal plants
    Stramonium, Belladonna, Hyocyamus, Coca, Lobelia and Tobacco

9. list four uses of Lobelia and two principal quinoline alkaloid
10. Explain Stas-Otto method of extraction of alkaloids


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