Seguidores

sábado, 17 de noviembre de 2012

Stomata

 Obserbing stomata inside the amazing school of Vermont School with Mr.Carbono

Objectives:


  • To know the function of a stomata.
  • Identify the stomata in the microscope.
  • Learn having funs.
  • Have a good grade.

Theorical backround:

Stomata:Is a part of a leaf in charge to allow gases such as carbon dioxide, water vapor and oxygen to move rapidly into and out of the leaf.

Materials:



  • Transparent nail polish
  • Microscope
  • Notebook
  • Pencil
  • Slide
  • Gloves
  • Lab coat.
  • A leaf
  • ETC.....

Reactives:

  • Water.

Procedure:


  • Irrigate transparent nail polish on the leaf.
  • Let the leaf dry.
  • When the leave is dry put it in the slide.
  • Observe the leaf with the microscope.
  • Take note of observation and draw what you see(If is like a pore it is stomata).

Image


Note:This image is not mine.








1.     






    Observation:

  1.    They are a lot of sphare shape.
  2.    I can see that stomata looks also like beans.
  3.    They are very bright colors.



Bibliography

http://wiki.answers.com/Q/What_is_the_main_function_of_the_stomata#ixzz2CUvLNR6r


Xylem and phloem

Observing xylem and phloem with Mr.Carbono on the amazing Vermont school.

Xylem and phloem lab activity

Objectives:

  • ·         Learn how to see xylem and phloem in a microscope.
  • ·         Learn more about xylem and phloem.
  • ·         Have fun learning new things. 

Theoretical backround:

  • Xylem: Is a transport tissue in charge to transport water and minerals from roots to oher parts of the plant.
  • Phloem:Is transprt  tissue in charge to transport food and minerals from leaves to storage organs and growing plants.

Procedure:


  1. 1 Set the microcope .
  2. 2.    Get the stem,cut horizontally a tiny slide.
  3. 3.    Set on the slide the specimen.
  4. 4.    Obserbe it and take note.
  5. 5.    Let the stalk stand in the water approximately one hour.
  6. 6.    Cut a small section of the stem and obserbe under a microscope(100x or 400x).


       Materials




  • 1  Microscope.
  • 2.    Knife.
  • 3.    Container.
  • 4.    Slide.
  • 2 - 250 ml graduated cylinders (plastic ) or similar sized bottle/container.

      Reactive.

1. Water.
2. Oil (immense).
3. Blue-Methylene.
4. Universal red.   

Images of phloem(400 x)






Observation:
  • It look like something raining.
  • Also looks like a hairy thing.
  • They are  parallel lines.

Image of xylem



No hay comentarios:

Publicar un comentario