Welcome

Anti Essays offers essay examples to help students with their essay writing.

Sign Up

Transpiration Lab Essay

Open Document

Below is an essay on "Transpiration Lab" from Anti Essays, your source for research papers, essays, and term paper examples.

What factors affect the rate of transpiration in plants?
Introduction: In vascular plants, water is absorbed through the roots and carries nutrients to the leaves. Much of this absorbed water is used for photosynthesis. But a lot is lost through a process called Transpiration. Transpiration is the evaporation of water from plant leaves. The water when carried from the roots to small pores called stomata, it changes t vapor and is released to the atmospheric air. When the stomata remains open to permit the intake of carbon dioxide and the release of oxygen, a lot of water is lost.
Transpiration rate can be affected by temperature, humidity, sunlight intensity and availability, precipitation, soil type and wind. Dry environments mean dry leaves and soil therefore limiting water uptake and transpiration rates. The purpose of this lab is to determine the rate of transpiration in a plant by measuring the amount of water the plant absorbs.

Hypothesis: I hypothesize that the heater and fan would have the most affect on water uptake by the plant.

Materials:
  * Plant cutter
  * Ring stand
  * Clamps
  * Fan
  * Heater
  * Lamp
  * 8 plants
  * potometer

Procedure:
  1. Cut off a piece from each plant
  2. Place the piece of plant in the potometer and leave for an hour
  3. Place one appliance next to the potometer and leave for another hour
  4. Continue until all appliances have been used
Results:
| Normal | With heater | With fan | With lamp |
Rubber Plant | 4.9 mL | 6.8 mL | 8.4 mL | 4.3 mL |
Weeping fig | 3.3 mL | 4.9 mL | 6.1 mL | 2.5 mL |
Zebra plant | 4.2 mL | 6.1 mL | 7.6 mL | 3.2 mL |
English Ivy | 1.8 mL | 3.2 mL | 5.1 mL | 2.1 mL |
Coleus | .9 mL | 3.9 mL | 6 mL | 3 mL |
Arrowhead | 3.6 mL | 6.6 mL | 7.5 mL | 4 mL |
Devils ivy | 2.9 mL | 4.1 mL | 4.6 mL | 3 mL |
Dieffenbachia | 4.1 mL | 6 mL | 7.7 mL | 3.9 mL |

Conclusion: Water evaporates out through the stomata and results in the drawing up of...

Show More


Citations

MLA Citation

"Transpiration Lab". Anti Essays. 11 Dec. 2018

<http://parimatchstavki7.com/free-essays/Transpiration-Lab-187989.html>

APA Citation

Transpiration Lab. Anti Essays. Retrieved December 11, 2018, from the World Wide Web: http://parimatchstavki7.com/free-essays/Transpiration-Lab-187989.html