Laboratory Manual of a Year in Science
Laboratory Manual of a Year in Science
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In our eReader you can find the full English version of the book. Read Laboratory Manual of a Year in Science Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Laboratory Manual of a Year in Science
What reading level is Laboratory Manual of a Year in Science book?
To quickly assess the difficulty of the text, read a short excerpt:
The corn stalk is an example of the monocoty- ledenous type, and the box elder of the dicotyledenous type.
Exercise 60. Functions of Stems.
Object : To determine one of the functions of stems.
Apparatus Impatiens stem Beaker Eosin solution Scalpel Potato Directions: Cut off a number of branches of the Impatiens, of the Coleus, or of any other plant with a thin epidermis, and immediately place the cut end in a beaker of eosin solution. Similarly, cut off the end of a potato and place the cut end... in the eosin solution. Set them aside for several hours. Then examine the stems to determine the paths taken by the red solu- tion. To see this more clearly, make a longitudinal section of the stem. What part of the stem is stained, the pith, wood, or epidermis? Does this stain extend into the leaves ? What is its course through the leaves ?
90 LABOKATOEY MANUAL Break off a leaf from the stem. Examine the end of the leaf stalk. What do the red dots on the end indi- cate ? Through Avhat part of the stem do liquids pass ?
What to read after Laboratory Manual of a Year in Science?
You can find similar books in the "Read Also" column, or choose other free books by Joseph Luther Thalman to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
The corn stalk is an example of the monocoty- ledenous type, and the box elder of the dicotyledenous type.
Exercise 60. Functions of Stems.
Object : To determine one of the functions of stems.
Apparatus Impatiens stem Beaker Eosin solution Scalpel Potato Directions: Cut off a number of branches of the Impatiens, of the Coleus, or of any other plant with a thin epidermis, and immediately place the cut end in a beaker of eosin solution. Similarly, cut off the end of a potato and place the cut end... in the eosin solution. Set them aside for several hours. Then examine the stems to determine the paths taken by the red solu- tion. To see this more clearly, make a longitudinal section of the stem. What part of the stem is stained, the pith, wood, or epidermis? Does this stain extend into the leaves ? What is its course through the leaves ?
90 LABOKATOEY MANUAL Break off a leaf from the stem. Examine the end of the leaf stalk. What do the red dots on the end indi- cate ? Through Avhat part of the stem do liquids pass ?
What to read after Laboratory Manual of a Year in Science?
You can find similar books in the "Read Also" column, or choose other free books by Joseph Luther Thalman to read onlineMoreLess
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