Wednesday, May 14, 2014

Plant Transpiration Lab

https://docs.google.com/spreadsheets/d/15JuPRY_mvZSS1zNies8b-cnYrgz9bdzNssRGYmUWd1Q/edit?usp=sharing

The link above is where my table can be found.

Lab Questions:


  1. Transpiration is the process where a plant takes in H2O and CO2 and creates glucose (or sucrose) with the help of light energy. The two forms of light energy are wavelength 680 and wavelength 700. This energy first excites the electrons and pushes them into a higher energy level. At the same time, H2O is split, releasing CO2. The electron is then taken to the electron transport chain by a transport protein. Some ATP is created but it is not enough to sustain the plant. Then the electron is taken to another protein receptor. The carbon is put into the Calvin cycle where it is joined together with a five carbon group. It will eventually create ATP.

2. The experimental controls were the timer, temperature, and how the plant was set up.

3. The fan and heater created the most  noticeable increase in the amount of transpiration that occurred in each plant. No, some plants were not well adapted to all of this molecular movement. Some did better with the heater than with the fan.

4. The fan created the largest amount of change because it added more molecular movement to the process of transpiration.

5. The Rubber Plant and the Zebra Plant has the highest transpiration rate. Each plant had a different rate because each is adapted to a specific biome.

6. If the plant's stomata were on the top, then the release of O2 and H2O would be slowed. Also, the intake of light would be less because the wavelengths would also have to go through the jelly.

7. The plant must loose water through transpiration because the weight of the water could weaken the stems. Additionally, too much water could throw of the balance of homeostasis in the plant.

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