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Transpiration In Plants IA

1469 Words6 Pages

Transpiration in Plants IA

Aim

Research question

There are a many factors that affect the plant transpiration. To what extent can the independent variable wind affect the dependent variable water loss(Transpiration)?

Hypothesis

Plants lose a lot of water every single day and the process of losing this water is called transpiration, this happens when water evaporates through the tiny pores (invisible to the naked eye). This experiment will test the effect of change in independent variable wind on its dependent variable rate of transpiration.

(Hypothesis): Environmental conditions and rate of transpiration in plants are independent. The rate of transpiration will not increase or decrease when exposed to a fan. (Null Hypothesis): …show more content…

Transpiration is nothing but the the loss of water due to evaporation through tiny pores on the leaf surface. When water is available to the roots they move into the plant through a process called osmosis and this creates a pressure in the root called the hydrostatic root pressure and this pressure forces the water upward but only for a short distance, the rest of the force to push the water up to the leaves is due to transpiration. The water loss is facilitated by the opening and closing of the stomata depending on environmental conditions. A stomata is nothing but the small invisible pores on the leaves. Transpiration is a very important part of the water cycle as it helps in keeping the air moist and this is beneficial to humans. Thats not the only reason, transpiration also occurs as plants need to breath and the breath the will need to open their stomata as this is the only pores they have. They need to open this pore to let the gases to go through their body. When the stomata is opened the water automatically begins to come out. The process of transpiration also help the plant to cool down. There are many environmental conditions that affect the opening and closing of stomata and thus affect the rate of transpiration. For example Temperature, light intensity, air currents, and humidity are some of the environmental factors that affect the rate of …show more content…

The rate of transpiration will increase when the independent variable (wind) is changed. This shows that water is the dependent on the environmental conditions. This experiment rejects -(Hypothesis): Environmental conditions and rate of transpiration in plants are independent. The rate of transpiration will not increase or decrease when exposed to a fan. and accepts the (Null Hypothesis): Environmental conditions and rate of transpiration in plants are dependent. The rate of transpiration will increase when exposed to a fan. The range of time used was 3 min as this experiment was carried out for accurate

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