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Observe a permanent slide of blood smear...

Observe a permanent slide of blood smear under a compound microscope. What did you see?

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The compound microscope is used to see

Activity-based question : Activity : Take a small drop of curd or buttermilk on a clean glass slide. Dilute it with a little water. Carefully keep a coverslip. Observe ot under high power of compound microscope. What did you see ?

Collect different water samples of fresh water. Mount them on a glass slide and observe under a compound microscope. Try to identify the organisms which are visible under it.

Smear a drop of fresh buttermilk on a glass slide. Stain it with methylene blue and put a coverslip over it. Observe the smear under the 10X objective of a compound microscope and then with the more powerful 60X objective. Did you notice the blue rod-shaped organisms Moving, around?

Answer the following: Sujata was observing the V.S. of maize leaf under the compound microscope. She observed epidermis, mesophyll and vascular bundles and described them in detail. What she must have described?

Bring ‘active dry yeast’ from the market. Mix a spoonful of yeast, two poonfuls sugar with «sufficient quantity of lukewarm water in a bottle. Fix a colourless, transparent balloon on the mouth of that bottle. Take a drop of the solution from the bottle on a glass slide, put a cover -slip over it and observe it under the compound microscope. Store the solution in the bottle carefully.

Search for a pond with greenish water. Collect some of the green fibres from the water. Put the fibres in a petridish and wash them clean with water. Put one of the fibres in a drop of water on a glass slide and spread it out straight. Put a cover-slip over the slide and observe under a compound microscope.

Project : With the help of information collected from internet, prepare the slides of various stages of mitosis and observe under the compounds microscope.

Take a transverse section of the stem of a plant and observe the stained xylem under a compound microscope.

Answer the given question : When will you use a simple microscope and when, a compound microscope? Explain in detail how you will use them.

TARGET PUBLICATION-INTRODUCTION OF BIOTECHNOLOGY-EXERCISE
  1. Observe the skin of the back of your hand with the help of a magnifyin...

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  2. What keeps the various organs and organ systems separate from each oth...

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  3. Observe a permanent slide of blood smear under a compound microscope. ...

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  4. Why do slim persons feel more cold in winter than those who are obese?

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  5. Why bones can not be folded?

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  6. Bend your arm at elbow. Observe the muscles in the front and the back ...

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  7. Which type of muscle is the diaphragm of the respiratory system?

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  8. Close your eyes and try to identify different objects by feeling them ...

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  9. What helps us to identify the singer by merely listening to the song o...

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  10. What is the main difference the growth of animals and plants ?

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  11. What is the reason behind the growth of a plant takes place only at ce...

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  12. As shown in the figure, place an onion on each gas jar in such a way t...

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  13. Take a fresh and fleshy leaf of Rhoeo, lily or any other plant. Pull a...

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  14. Suppose you want to grow a garden like the one shown in the picture, a...

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  15. You must have seen flowers of same variety but of 2 or 3 different col...

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  16. Give examples of GMCs.

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  17. Collect information about GM varieties of crops in your area and make ...

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  18. Establish your own plant nursery near your school or home. Prepare the...

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  19. Who introduced tissue culture?

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  20. To which places do people choose to go on vacation in order to relax w...

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