Transpiration
Lab Report
Practical 10
Transpiration
Date: 05.02.2014
Tutorial group: F
Name: Aimukambetov Sanatzhan
Lab partner: Aibekova Lazzat
Measuring rate of water uptake by plant
Introduction
Transpiration is the one of the important processes in the plant where the water movement through a plant takes place and after evaporates mostly from leaves (also from stems and from flowers). In other words, transpiration is one of the most important mechanisms in plants which affect and support the flow of water. It is a process where evaporation of water through the leaves’ stomata takes place. Transpiration can be controlled by opening or closing of stomata. Some reasons can explain why transpiration is so important to plants. And one of them is that it influences on photosynthesis by providing leaves with water. One more reason is that transpiration also impacts the respiration of the plant which allows gas exchange through stomata such as releasing or absorbing gases (CO2 and O2). Nevertheless, some surrounding conditions can affect the rate of transpiration. So, in this practical those conditions’ affects were measured.
Firstly, some experiments were examined in this practical in order to identify the effects of environment on the rate of transpiration. Secondly, the rate of transpiration was measured in different surrounding’s conditions, including temperature, light and wind force. Thirdly, the rate of transpiration was measured under standard conditions in order to make easy to compare normal rate and affected rate.
Therefore, several hypothesizes can take place in this experiment. Firstly, the rate of transpiration will increase by increasing the intensity of light. Secondly, if the wind forces increase, the rate of transpiration will also increase. And thirdly, if the temperature increases, the rate of transpiration will increase.
The main aim of this experiment is measuring the rate of transpiration in different conditions such as temperature, light and
Practical 10
Transpiration
Date: 05.02.2014
Tutorial group: F
Name: Aimukambetov Sanatzhan
Lab partner: Aibekova Lazzat
Measuring rate of water uptake by plant
Introduction
Transpiration is the one of the important processes in the plant where the water movement through a plant takes place and after evaporates mostly from leaves (also from stems and from flowers). In other words, transpiration is one of the most important mechanisms in plants which affect and support the flow of water. It is a process where evaporation of water through the leaves’ stomata takes place. Transpiration can be controlled by opening or closing of stomata. Some reasons can explain why transpiration is so important to plants. And one of them is that it influences on photosynthesis by providing leaves with water. One more reason is that transpiration also impacts the respiration of the plant which allows gas exchange through stomata such as releasing or absorbing gases (CO2 and O2). Nevertheless, some surrounding conditions can affect the rate of transpiration. So, in this practical those conditions’ affects were measured.
Firstly, some experiments were examined in this practical in order to identify the effects of environment on the rate of transpiration. Secondly, the rate of transpiration was measured in different surrounding’s conditions, including temperature, light and wind force. Thirdly, the rate of transpiration was measured under standard conditions in order to make easy to compare normal rate and affected rate.
Therefore, several hypothesizes can take place in this experiment. Firstly, the rate of transpiration will increase by increasing the intensity of light. Secondly, if the wind forces increase, the rate of transpiration will also increase. And thirdly, if the temperature increases, the rate of transpiration will increase.
The main aim of this experiment is measuring the rate of transpiration in different conditions such as temperature, light and
References: Biology Online.2013. Last modified November 2013. http://www.biology-online.org/ Biology Laboratory Manual. 2013-2014. p. 48-52. Campbell, Neil A. 2009. Biology. 9th edition. 122-125. Kent, Michael.2000. Advanced Biology. Oxford university press.