What are the 5 factors affecting transpiration?
The environmental factors affecting the rate of transpiration are:
What are the factors which affect transpiration? Various environmental factors, such as the presence of light, relative humidity, temperature, wind speed, availability of water, and cellular factors like the orientation of leaves, number of stomata, cuticles, and lenticels affect transpiration.
What are the internal factors affecting transpiration in plants?
What are the internal factors affecting transpiration? Ans: The internal factors affecting transpiration include leaf area, leaf structure, root-shoot ratio, the orientation of leaves, and the presence of mucilage, hormones, and other solutes.
Factors affecting transpiration
What are the 4 types of transpiration?
Depending upon the plant surface transpiration is of the following four types:
Variables Affecting Transpiration Rates As the temperature increases, transpiration will increase due to a higher concentration in sunlight and warm air. However, if temperatures remain high for long periods of time eventually leading to drought, transpiration may go down to conserve water in the plant.
How do external factors affect transpiration?
Transpiration is affected greatly by the environment factors such as temperature, light relative humidity, wind, and so on. It is difficult, however, to determine the effect of individual factors strictly in the field condition, because in nature it is not possible to change one factor without changing other factors.
Plants have two transport systems - xylem and phloem . Xylem transports water and minerals. Phloem transports sugars and amino acids dissolved in water.
What are the most important factor of transpiration?
The most important factor governing rate of transpiration is the vapour pressure gradient between internal environment of leaf mesophyll tissue and the environment. Thus, the most important factor affecting transpiration is the atmospheric humidity. At high levels of atmospheric humidity, less transpiration occurs.
Factors Affecting Translocation Rate The rate of photosynthesis (which is affected by light intensity, CO2 concentration, temperature, etc.) The rate of cellular respiration (this may be affected by any factor which physically stresses the plant)
How is transpiration affected by humidity?
When the relative humidity is high, the atmosphere contains more moisture. This lowers the driving force for transpiration. Lower relative humidity levels correspond to less moisture in the atmosphere and thus a higher driving factor for transpiration.
Why is Transportation An Essential Process? To circulate water, essential nutrients, excretory products, and gases within the plants for various purposes, transportation in plants is necessary. In vascular tissues, this transportation in the plant takes place.
What is class 3 transpiration?
Transpiration is the process in which plants release the water inside it in the form of moisture or water vapor. Roots consume some amount of water from the soil and the rest evaporates in the atmosphere. Parts of plants such as stems, small pores on leaves, and flowers evaporate the water to the atmosphere.
Transpiration is a process that involves loss of water vapour through the stomata of plants. The loss of water vapour from the plant cools the plant down when the weather is very hot, and water from the stem and roots moves upwards or is 'pulled' into the leaves.
What are the three modes of transpiration?
There are three kinds of transpiration: stomatal transpiration, cuticular transpiration and lenticular transpiration. Mechanism of stomatal transpiration involves following steps: Osmotic diffusion of water from xylem to inter cellular spaces through mesophyll cells. Opening and closing of stomata.
During daytime in the sunlight, the rate of transpiration is faster. This is because the stomata remains open to allow the inward diffusion of carbon dioxide for photosynthesis. During dark, the stomata are closed, and hence transpiration hardly occurs at night.
Which factor decreases the rate of transpiration?
The rate of transpiration decreases with the closure of stomata, high humidity, high atmospheric carbon dioxide level, the low water content of leaf, shedding of leaf.
Wind – Wind can alter rates of transpiration by removing the boundary layer, that still layer of water vapor hugging the surface of leaves. Wind increases the movement of water from the leaf surface when it reduces the boundary layer, because the path for water to reach the atmosphere is shorter.
What are the external and internal factors that affect transpiration?
Solution : Transpiration is affected by several external and internal factors.Plants have pipe-like vessels to transport water and nutrients from the soil. The vessels are made of special cells, forming vascular tissue. The vascular tissue for the transport of water and nutrients in the plant is called xylem.29-Apr-2021
What are the 4 processes of transportation?
Solution - minerals are dissolved in the water and carried along in solution. Suspension - fine light material is carried along in the water. Saltation - small pebbles and stones are bounced along the river bed. Traction - large boulders and rocks are rolled along the river bed.
What are the 5 factors affecting transpiration?