"Transpiration" Essays and Research Papers

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    Biology Form 5

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    PAPER 3 Answer all question. Question 1 Transpiration is the evaporation of water vapour from the leaves surface. Air movement is one of the factor that affects the evaporation of water vapour. A group of student carried out an experiment to study the effect of air movement on rate of transpiration of plants. Diagram 1 shows the apparatus used by the students. The experiment was conducted under still air and strong fan speed. Diagram 1 The time taken for the air bubble in the capillary tube to

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    S(REG_AR) Model

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    consumptive use of water is related to evapo-transpiration by a coefficient called crop coefficient‚ which depends on type of crop and its growing stage. In addition‚ evaporation measurements are of great importance for irrigation systems design‚ irrigation rotations‚ and development of hydrologic models. In the present research‚ a seasonal regression-autoregressive “S(REG_AR)” model has been developed and used to simulate and estimate monthly evapo-transpiration‚ and hence water requirements for agricultural

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    the effect of one specific environmental condition on the rate of transpiration in plants. This particular investigation looked at the number of leaves in a plant and how it would affect the rate of transpiration in plants. The aim of this investigation was to find out if the larger the number of leaves a plant had‚ the higher the rate of transpiration would be. The results from this investigation showed increased transpiration in the plants with the greater number of leaves compared to the ones

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    Ib Topic 9 - Plant Science

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    Topic 9: Plant Science 9.1 Plant Structure and Growth 9.1.1 Draw and label plan diagrams to show the distribution of tissues in the stem and leaf of a dicotyledonous plant. Cross-section of a stem Part of plant | Purpose | Epidermis | Surface of the stem made of a number of layers often with a waxy cuticle to reduce water loss | Cortex Tissue | Forming a cylinder of tissue around the outer edge of the stem. Often contains cells with secondary thickening in the cell walls which provides

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    This was tested by putting one plant in water in front of a fan and the other plant in water‚ but with no fan. The results showed that the plant in front of the fan transpired more. However‚ since the plant blew cold air it affected the rate of transpiration and altered the experiment. Overall‚ this experiment supports the hypothesis that wind makes plants transpire more. Hypothesis If a plant is exposed to wind for 24 hours‚ then it will transpire

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    1979 A.P.

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    to plants‚ describe in detail one way of: a) measuring the rate of transpiration b) measuring the rate of photosynthesis c) separating pigments Essay : Transpiration is the loss of water vapor from land plants into the atmosphere‚ causing movement of water through the plant from the soil to the atmosphere via roots‚ shoot and leaves‚ which occurs mainly through the stomata. Factors which can affect the rate of transpiration are those such as temperature‚ humidity‚ wind‚ and light‚ and the water

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    Plant Cellular Processes

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    evolved morphological‚ anatomical and physiological adaptations to obtain‚ process‚ transport and store raw materials and energy under varying conditions. capture and conversion of radiant energy to chemical energy takes place in chloroplasts (chloroplasts are localized in specialized tissues) products of photosynthesis are used in respiration‚ growth‚ repair‚ maintenance‚ storage. energy consuming reactions must take place for the substances of photosynthesis to be transported around the plant

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    dark environments on transpiration. If the wind speed is high enough during the night time will this cause the opening of stomata and transpiration‚ even though it is against the plants bioloical clock to do so? I’ve got 3 different wind speeds on the fan and I’m keeping the temperature constant in both light/dark environments. Wind speed does not normally cause stomata to open. Indeed‚ high wind speed may cause stomata to close a) because of the high rate of transpiration leading to water stress

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    Water Absorption in Plants

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    Plant Transport Plants are mostly made up of water. Lettuce is about 94% water and a potato is about 77% water. Plants need water for three main purposes: ------photosynthesis‚ -support -transport of chemicals Water is a raw material for photosynthesis. If water is in short supply‚ the rate of photosynthesis will be limited. Plants need water for support‚ otherwise they wilt. Water is needed to transport many chemicals within plants. Chemicals‚ such as mineral salts‚ dissolve in water and

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    Water Resources Of India

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    India is rich in water resources‚ being endowed with a network of great rivers & vast alluvial basins to hold groundwater. Conditions‚ however‚ vary widely from region to region. Whereas there are some chronically drought affected areas‚ there are others which are frequently subject to damage by floods.On the whole‚ under the pressure of rapid population growth‚ the available resources of water are being developed & depleted at a fast rate & the situation seriously underlines the need for taking

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