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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control? What were some constants in this lab? 2. Calculate the average rate of water loss per day for each of the treatments. (Humidity‚ Light‚ Fan‚ Dark‚ Room or control). 3. Explain why each of the conditions causes an increase or decrease in transpiration compared with the control. 4. How did each condition affect the gradient of water potential from the stem to leaf in the experimental plant? 5. What is the advantage to a plant of closed stomata when water is in short supply
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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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_______________ Title: Plant Transpiration Question: What factor affects the transpiration rate in plants? | Normal | With Fan | With Heater | With Lamp | Arrowhead | 3.6 | 7.5 | 6.6 | 4.0 | Coleus | 0.9 | 6.0 | 3.9 | 3.0 | Devil’s Ivy | 2.9 | 4.6 | 4.1 | 3.0 | Dieffenbachia | 4.1 | 7.7 | 6.0 | 3.9 | English Ivy | 1.8 | 5.1 | 3.2 | 2.1 | Geranium | 1.2 | 4.7 | 5.8 | 2.4 | Rubber Plant | 4.9 | 8.4 | 6.8 | 4.3 | Weeping Fig | 3.3 | 6.1 | 4.9 | 2.5 | Zebra Plant | 4.2 | 7.6 | 6.1
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TRANSPIRATION DESIGN LAB Transpiration is the process through which water is lost from a plant. Water is taken into a plant through roots and root hairs by osmosis‚ and it exits the plant through stomata. Transpiration helps the diffusion of both O2 and CO2 plus it helps the movement of water throughout the plant. There are some factors that affect the rate of transpiration of the plant. Those factors are mainly humidity‚ soil water supply‚ sunlight‚ temperature and wind. Any alteration
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An experiment proving transpiration in leaves Aim To see how different environmental conditions affect transpiration of a leaf and which side of the leaf transpires the most. Background Information Plants put down roots into the soil to draw water and nutrients up into the stems and leaves. Some of this water is returned to the air by transpiration (when combined with evaporation‚ the total process is known as evapotranspiration). Transpiration rates vary widely depending on weather conditions
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Biology Lab Report (F.4) * Objective: To study the transpiration of a leafy shoot using the bubble potometer * Materials and apparatus: * Bubble potometer * Leafy shoot * Scissors * Basin with water * A fan * Plumbing tape * Method: Normal Condition: 1. The bubble potometer was filled with water. 2. The stem of a leafy shoot was cut under water. 3. The bottom of the stem was wrapped by plumbing tape. 4. The stem was fitted onto the photometer
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Transpiration Formal Lab Report By Jessica Tran Introduction When water is transported from the roots to the mesophyll cells in the leaves‚ it is evaporates out the stomates‚ called transpiration‚ to create a lower osmotic potential. Osmotic potential is the part of the water potential of a tissue that results from the presence of solute particles. Even though the stomates open to release water‚ it also brings in carbon dioxide to produce sugar and oxygen through a process of photosynthesis
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LAB REPORT HYPOTHESIS 1: Plants transpire the most when the environment has light and less humidity JUSTIFICATION: Water evaporates more readily because light stimulates the opening of the stomata and photosynthesis would occur. HYPOTHESIS 2: Transpiration would occur the second most when there’s light and lots of humidity. JUSTIFICATION: The light would allow photosynthesis to occur and the stomata to open but little if any diffusion of water out the leaf would occur. HYPOTHESIS 3:
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Title: Grip Strength and Muscle Fatigue I. Purpose/Hypothesis: In this lab the subject will grip on a scale that measures the amount of force being put on it. We will observe the change in hand strength during continuous grip over time. Then we will also measure hand strength during rapid‚ repetitive gripping. I believe that hand strength will weaken during a continuous grip more than if you were to keep a repetitive grip. II. Procedure: 1. Connect the Hand Dynamomenter to LabQuest and select
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