"Transpiration and translocation in plants" Essays and Research Papers

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    Transpiration in Plants

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    Transpiration is the evaporation of water from the aerial parts of plants‚ especially leaves but also stems‚ flowers and roots. Leaf surfaces are dotted with openings called stomates that are bordered by guard cells. Collectively‚ the structures are called stomata.[1] Leaf transpiration occurs through stomata‚ and can be as a necessary "cost" associated with many processes such as the opening of the pistil and allowing the diffusion of carbon dioxide gas from the air for photosynthesis. Transpiration

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    Plants Transpiration Lab

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    Effect of Humidity on Transpiration in Plants Problem/Aim How does placing a plant in a more humid location for 50 minutes affect its rate of transpiration? Introduction Transpiration is the loss of water from a plant‚ mainly through the stomata of leaves. Darkness‚ internal water deficit‚ and extremes of temperature tend to close stomata and decrease transpiration; illumination‚ ample water supply‚ and optimum temperature cause stomata to open and increase transpiration. Its exact significance

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    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

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    Transpiration Abstract This lab demonstrates how different environments effect the rate of transpiration in plants. A potometer is set up and placed in four different environments: one simply at room temperature (the control)‚ one with a fan pointing toward it creating a gentle breeze‚ on with a floodlight on it and a beaker felled with water as a heat sink‚ and one where the leaves are misted then covered with a transparent plastic bag. It is imperative that the tubing doesn ’t have any bubbles

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    Lab 4: Plant Transpiration Project By Shelby Hyde Lab 030 Date Due: March 12‚ 2013 The Effect of Wind on the Rate of Transpiration Introduction: Transpiration is the process through which water is evaporated from plants. This serves many purposes‚ including thermoregulation and the diffusion of CO2‚ but most importantly creates a water potential difference which causes the mass flow of water and nutrients from the roots to the leaves of the plant. Transpiration is accomplished through structures

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    Translocation

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    Translocation of Organic Solutes   Plants synthesize food materials by photosynthesis and store the same in the form of starch grains in the chloroplasts found in mesophyll cells.  Then the found material is converted into simple sugars; then it is transported to regions where it is required – stem apex‚ young flower buds fruits and storage organs are the sites to which the organic food is translocated.  The site of synthesis and the site of need are separated by time and space.  The structures

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    Translocation

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    Translocation A. The Munch pressure flow model The Principal of Pressure-Flow Model of Phloem Transport The Münch pressure-flow model is an explanation for the movement of organic materials in phloem .By the Münch pressure-flow experiment‚ two dialysis tubings are connected by a glass tube. The dialysis tubings only permeable to water or particles which have smaller size than the pores of the tubing‚but impermeable to the larger solutes.As larger molecules such as proteins and polysaccharides(starch)

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    transpiration

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    process of transpiration in vascular plants? vascular plants 3 Answers FollowEdit 3 Answers ‚ Sorted by Points | Newest first | Oldest first on 29th July‚ 2011 William Cyrus 12.1k Karma 1 Transpiration is the procedure by which plants acquire nutrients in the air and lose their own moisture in the process. The leaf tissues is important for this process. Edit on 2nd November‚ 2010 Anonymous 0 The process by which the plants lose excess

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    Transpiration

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    Prof. Marilyn Combalicer Exercise 3 TRANSPIRATION I. Result and Discussion 1. Effect of the Environment Factors on the Rate of Transpiration The quantitative rate of transpiration of the branch of papua dilaw was determined using the potometer. The distance travelled by the bubble in the capillary per unit of time was observed under different treatments: a. in front of a fan‚ b. exposed to light‚ c. fan and light‚ d. no treatment. Table 1. The transpiration rate of the branch of papua dilaw when

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    Transpiration

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    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

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