|
Plant
type
|
Normal (mL)
|
Fan (mL)
|
Heater (mL)
|
Lamp (mL)
|
|
Arrowhead
|
3.6
|
7.5
|
6.6
|
4
|
|
Coleus
|
0.9
|
6
|
3.9
|
3
|
|
Devil's
Ivy
|
2.9
|
4.6
|
4.1
|
3
|
|
Dieffenbachia
|
4.1
|
7.7
|
6
|
3.9
|
|
English
Ivy
|
1.8
|
5.1
|
3.2
|
2.1
|
|
Geranium
|
1.2
|
4.7
|
5.8
|
2.4
|
|
Rubber
Plant
|
4.9
|
8.4
|
6.8
|
4.3
|
|
Weeping
Fig
|
3.3
|
6.1
|
4.9
|
2.5
|
|
Zebra
Plant
|
4.2
|
7.6
|
6.1
|
3.2
|
1. Describe the process of transpiration in vascular plants.
The process of transpiration is when vascular plants gain nutrients and release excess water/moisture.
2. Describe any experimental controls used in the Investigation.
Time. Each part of the experiment lasted one hour.
3. What environmental factors that you tested increased the rate of transpiration? Was the rate of transpiration increased for all plants tested?
a) heat, light, wind, temperaure
b) yes, the rate of transpiration increased at some point for all plants tested,
4. Did any of the environmental factors (heat, light, or wind) increase the transpiration rate more than the others? Why?
Wind increased transpiration rates the most possibly because of osmosis. The water potential on the outside of the leaf is significantly less than the water potential on the inside of the leaf and therefore, more water is released from the leaf in an attempt to have a more balanced water spread.
5. Which species of plants that you tested had the highest transpiration rates? Why do you think different species of plants transpire at different rates?
The Rubber Plant had the highest transpiration rates possibly because the environment they naturally grow in calls for more transpiration to balance the water.
6. Suppose you coated the leaves of a plant with petroleum jelly. How would the plant's rate of transpiration be affected?
Petroleum jelly would cover the stomata, effectively stopping all transpiration.
7. Of what value to a plant is the ability to lose water through transpiration?
Transpiration helps maintain the plant temperature as well has be an essential part to the photosynthesis process. Nutrients are also carried up from the roots to the stem by transpiration.
lmao this are literally my bio homework question
ReplyDeleteSame Gtrue
ReplyDeleteHello I have a qn. In other sites it says Arrowhead has the best transpiration rates. I was very confused as Rubber plant obviously was the best. Why do they say so?
ReplyDeleteIt is actually in fact the arrowhead the math was not done to calculate the the highest rate. My guess is he or she picked the rubber plant because it had the highest number.
DeleteThese are literally the answers on my project
DeleteDude, these was the answers on my test. ._.
ReplyDelete