Transpiration Rates in Plants
Biology Assignment
Transpiration rates between Exotic vs. Native plants
In this investigation we will be looking at transpiration. The topic we will be focusing on is transpiration rates between native plants as well as exotic plants. We will be experimenting with 2 native plants as well as 2 exotic plants. The reason we are experimenting on this topic is because of Australia’s dry weather, we are wanting to find out which plants will be able to hold more water during Australia’s peaking tempretures, to do this we need to test their transpiration rates.
Transpiration
Transpiration is the evaporation of water from the plants in the form of water vapour; water exits the plants through the leaves. Water vapour exits the leave through a pore, which is known as the stoma or stomata. The stoma is a pore, which is usually located in large amounts on the underside of the leave. The stoma is used to control gas exchange of CO2, which is also known as carbon dioxide and H2O, which we all know as water. Carbon dioxide is gained while Water is loss. CO2 is present in the atmosphere at around 390 ppm (parts per million). It is required for the plants stoma to be open during the daytime.
Transpiration works because there are air spaces in the leaf where saturated water vapour is present, so whenever the plant stoma is open for it to gain carbon dioxide, which is needs for photosynthesis, it simultaneously looses water vapour. The transpiration rate is dependent on the diffusion provided by the stomatal pores and also humidity’s gradient between the leaf’s air spaces, and outside air. Different plants have different rates of transpiration because of the different environments their in, with this said we can assume native Australian plants have slower rates of transpiration then exotic plants because of the environment they are in (Australia’s dry weather) and the can adapt to their environment. The factors that affect transpiration rate are sunlight, temperature of
Transpiration rates between Exotic vs. Native plants
In this investigation we will be looking at transpiration. The topic we will be focusing on is transpiration rates between native plants as well as exotic plants. We will be experimenting with 2 native plants as well as 2 exotic plants. The reason we are experimenting on this topic is because of Australia’s dry weather, we are wanting to find out which plants will be able to hold more water during Australia’s peaking tempretures, to do this we need to test their transpiration rates.
Transpiration
Transpiration is the evaporation of water from the plants in the form of water vapour; water exits the plants through the leaves. Water vapour exits the leave through a pore, which is known as the stoma or stomata. The stoma is a pore, which is usually located in large amounts on the underside of the leave. The stoma is used to control gas exchange of CO2, which is also known as carbon dioxide and H2O, which we all know as water. Carbon dioxide is gained while Water is loss. CO2 is present in the atmosphere at around 390 ppm (parts per million). It is required for the plants stoma to be open during the daytime.
Transpiration works because there are air spaces in the leaf where saturated water vapour is present, so whenever the plant stoma is open for it to gain carbon dioxide, which is needs for photosynthesis, it simultaneously looses water vapour. The transpiration rate is dependent on the diffusion provided by the stomatal pores and also humidity’s gradient between the leaf’s air spaces, and outside air. Different plants have different rates of transpiration because of the different environments their in, with this said we can assume native Australian plants have slower rates of transpiration then exotic plants because of the environment they are in (Australia’s dry weather) and the can adapt to their environment. The factors that affect transpiration rate are sunlight, temperature of