Essay Color Key

Free Essays
Unrated Essays
Better Essays
Stronger Essays
Powerful Essays
Term Papers
Research Papers





Stomata Leaf Peel Count

Rate This Paper:

Length: 330 words (0.9 double-spaced pages)
Rating: Red (FREE)      
- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

Stomata Leaf Peel Count

Aim:

· To examine the stomata on the upper and lower epidermis of a leaf.

· To investigate and find out which side has more and why.

Prediction:

I predict that there will be more stomata on the underside of the leaf
(the lower epidermis) than on the upper epidermis because that way the
maximum amount of sunlight can enter the leaf without many stomata
blocking the way. Also, a lower number of stomata would increase the
surface area and therefore increase the amount of area available for
light to hit.

Apparatus:

o Microscope

o Leaf

o Nail varnish

o Forceps

o Slides

Method:

1. Take a fresh leaf and a bottle of nail varnish.

2. Paint 2 squares (about 1cm2) on each side (you should have 2 on
the bottom and 2 on the top)

3. Wait for them to dry.

4. Paint on a second layer when the first on is completely dry.

5. While waiting for the nail varnish to dry, take out a microscope
and set it up (make sure that the light is dim)

6. Using forceps, peel of a strip of nail varnish from the upper
epidermis.

7. Set it up on a slide and put it under the microscope.

8. Count the number of stomata you see when it is in focus (use a
stronger intensity so that you don't have to count as many stomata
and your results will be more accurate)

9. Repeat steps 6-8 with a strip of nail varnish from the lower
epidermis.

10. Record your results.

Results:

Magnifying intensity: x10

Number of stomata in upper epidermis: 15
Number of stomata in lower epidermis: 53

Analysis:

My results show that there were more stomata in the lower epidermis of
the leaf than on the upper epidermis. Stomata are the small holes on
the upper and lower epidermis of the leaf that let gases diffuse in
and out. Carbon dioxide diffuses in for photosynthesis, oxygen (one of
the results of photosynthesis) diffuses out, and water vapour diffuses
out.

There were more stomata on the bottom of the leaf because on the top
of the leaf sunlight has to enter. A lot stomata would block the
maximum amount of sunlight from entering because it would lower the
surface area of the leaf (a lower number of stomata would increase the
area available for sunlight to hit the leaf). Also, if there were more
holes on the top of the leaf, more water would be lost by evaporation
because they are facing the sun, instead of being under the leaf in
the shade.

How to Cite this Page

MLA Citation:
"Stomata Leaf Peel Count." 123HelpMe.com. 17 Sep 2014
    <http://www.123HelpMe.com/view.asp?id=115466>.




Related Searches





Important Note: If you'd like to save a copy of the paper on your computer, you can COPY and PASTE it into your word processor. Please, follow these steps to do that in Windows:

1. Select the text of the paper with the mouse and press Ctrl+C.
2. Open your word processor and press Ctrl+V.

Company's Liability

123HelpMe.com (the "Web Site") is produced by the "Company". The contents of this Web Site, such as text, graphics, images, audio, video and all other material ("Material"), are protected by copyright under both United States and foreign laws. The Company makes no representations about the accuracy, reliability, completeness, or timeliness of the Material or about the results to be obtained from using the Material. You expressly agree that any use of the Material is entirely at your own risk. Most of the Material on the Web Site is provided and maintained by third parties. This third party Material may not be screened by the Company prior to its inclusion on the Web Site. You expressly agree that the Company is not liable or responsible for any defamatory, offensive, or illegal conduct of other subscribers or third parties.

The Materials are provided on an as-is basis without warranty express or implied. The Company and its suppliers and affiliates disclaim all warranties, including the warranty of non-infringement of proprietary or third party rights, and the warranty of fitness for a particular purpose. The Company and its suppliers make no warranties as to the accuracy, reliability, completeness, or timeliness of the material, services, text, graphics and links.

For a complete statement of the Terms of Service, please see our website. By obtaining these materials you agree to abide by the terms herein, by our Terms of Service as posted on the website and any and all alterations, revisions and amendments thereto.



Return to 123HelpMe.com

Copyright © 2000-2013 123HelpMe.com. All rights reserved. Terms of Service