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Essays in Green Plants as Organisms category
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To observe the effect of temperature on an increasing volume of water.
... rinsed every time, and that the thermometer was at room temperature, so as not to yield any anomalous results. All the results will be taken on the same day, so that the room temperature does not differ, as this could ...
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To peel the epidermis layer from underneath of the plant leaf and count the average distance between the stomata.
... of the slides * Pipette - to apply the glycerol to the slide * Tissues - to wipe excess glycerol from slides * Brush - to apply the nail varnish to the underside of the leaf. It should be available in the cap ...
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To plan a fair investigation that will show how abiotic factors such as water content of soil and soil pH effects the distribution and abundance of Ranunculus Repens and Ranunculus Bulbosus.
... system as roots do not need to stretch deep into the ground to find water, and there will not be as much supportive tissue as the water provides enough buoyancy. If there are problems identifying Ranunculus Repens, a microscope could ...
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To predict the final temperature of a mixture of cups of water at different temperatures.
... mark with hot water from the pail. Measure and record the temperature of both cups of water. 3) Predict the temperature if you mix the two cups of water in the liter container. 4) Pour the 2 cups into the liter container, ...
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To see how the amount of bubblewrap affects the rate at which hot water cools down.
... to boil the kettle then we will insulate the can (silver tin) with bubble wrap. STEP 2: We will then insert hot water into the can (we are using in metal can because metal conducts heat and it will test the ...
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To see if boiling potatoes denatures the catalase enzyme so it will not react with hydrogen peroxide.
... and measure the volume of hydrogen peroxide. AIM To find if the concentration of hydrogen peroxide effects the reaction between enzymes in potato and hydrogen peroxide. PREDICTION I predict that the amount of oxygen bubbles released during the reaction will decrease ...
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To see if there is a difference in biodiversity between two different ecosystems, and to see which one is best at supporting life.
... it reaches the ground so only a little light ever does reach the ground. This ecosystem is very low compared to the other area. It gets all the rainwater that runs off the field as it's on a bit of ...
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To see what factors affect the rate of photosynthesis. Introduction Photosynthesis is the process by which green plants and certain other organisms transform light into chemical energy
... light energy is used to split water molecules into hydrogen and oxygen. The oxygen, the product which we shall be using as an indicator for the rate, is then expelled through the leaf. Therefore, if light intensity is increased, light ...
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To see whether liquid in a can stays warmer for longer if it has twice the amount of the same insulation.
... : Insulator Can Thermometer Water Results : Conclusion : As you can see from the graph can 2 sustained its heat for longer than can 1. The graph shows that both cans had a steady decline but as you can ...
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To see which coloured light bulb, when shone on the pondweed, produces the most bubbles in 30 seconds.
... water over the jam jar, as will be hot and may crack. * Be careful not to allow water to spill on or near the lamp. Diagram Method The apparatus was set up as shown on the previous page. After 30 seconds, the number ...
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To what extent is the role of water the cause of present day desert landscapes?
... very short period of time. It also affects the hydrological cycle in a great way. An example of this is in Lima, Peru where the annual rainfall is usually 27mm but extreme events have recorded 1524mm falling in 24 hours. The landscape ...
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Transpiration
... with a higher concentration on the underside (this is a strategy to reduce water loss). Plants contain a range of 10,000 - 100,000 stomata per cm2. Stomatal opening is regulated by turgor in the guard cells. The inner walls of ...
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Transpiration
... Transpiration occurs because plants must keep the surface of the mesophyll cells in the interior of the leaves moist so they can absorb carbon dioxide from the air to be converted into carbohydrates. The inevitable result of keeping these cells ...
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Transpiration Coursework
... round the leaf on squared paper, and then counting the squares. The weight will me weighed in grams (g), the surface area will be measured in cm squares, and the weight lost will be in grams (g). Fair Test- I ...
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Transpiration in plants
... holes called stomata (singular: stoma), which allow the plant to breathe. When the water reaches the leaves it evaporates and escapes through the stomata. This is called transpiration. As the water escapes, more water is sucked up the xylem. In ...
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Transpiration in Plants
... the surroundings outside. This process is called transpiration. Plants control the transpiration process by opening and closing their stomata operated by the surrounding guard cells. The rate of transpiration will increase when it is windy because the wind will reduce the ...
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Transpiration Investigation
... through the pores in the leaves and where there are more leaves there are more pores through which water can transpire. The difference between the weight of the water before the 30 hours and the rate of the water afterwards ...
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transpiration lab
... absorbed at the roots by osmosis, and any dissolved mineral nutrients travel with it through the xylem. The rate of transpiration is directly related to whether the stomata are open or closed. The amount of water lost by a plant depends ...
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Transpiration stream
... cells have a high surface area to volume ratio to efficiently absorb water. As water enters root hair cells, it has three routes for it travel along symplastic pathway, apoplastic pathway and vacuolar pathway. In the symplastic pathway water crosses ...
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Transpiration, biological process in which water evaporates from a plant, especially through tiny openings called stomata on the surfaces of leaves.
... As water evaporates from the leaves, more comes into the roots to replace it. In fact, water is pulled in a continuous stream through the plant, from root to leaf, by capillary action-a wick or suction effect, known as transpiration ...
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Transpiration.
... As water evaporates from the leaves, more comes into the roots to replace it. In fact, water is pulled in a continuous stream through the plant, from root to leaf, by capillary action-a wick or suction effect, known as transpiration ...
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Transport in flowering plants
... the 'food' materials that the plant has made. These enable the movement of water, organic molecules and ions over long distances. Xylem and phloem tubes are found together in a group called a vascular bundle. Xylem vessels run from the roots, ...
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Transport is needed in plants because as with all living things, the cells need a regular supply of nitrogen and oxygen.
... as it means that oxygen and carbon dioxide can diffuse into the plant so easily that there is no need for a gas transport system. Also, the leaves will tilt themselves towards the light in certain plants, so that they ...
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Tundra vs. Desert - Opposite worlds or Sister lands.
... characteristics in order to survive with the lack of water. Most of these plants have few or no leaves in order to reduce transpiration and avoid loosing their water to the atmosphere. Their roots or stems may be swollen with ...
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Two pupils lived in houses which were identical in size and shape. However in winter they noticed that one of the houses used more heating fuel than the other even though they both had the same heating systems and were kept at the same temperature.
... the beakers was the same and the volume of the water in each beaker in each beaker was also the same (i.e. 50cm3). Each beaker was filled with boiling water and when the temperature was recorded as being approximately 65?C ...