Plants That Can Move Inspire New Adaptive Structures http://www.usnews.com/science/articles/2011/02/23/plants-that-can-move-inspire-new-adaptive-structures Summary: Researchers at the University of Michigan and Penn State University have been studying a species of shape-changing plant that they believe can help them develop a new breed of structures that can twist‚ turn‚ bend‚ stiffen‚ and otherwise adapt to their environments. The Mimosa plant‚ which folds its leaves on contact through a phenomenon
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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: Plants transpire
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The purpose of this experiment is to measure pressure changes on the different types of environmental factors that affect the rate of transpiration. Hypothesis If the temperature of an environment increases‚ then the rate of transpiration in plants will increase and will reduce the surface area of leaves. Materials This lab requires a LabQuest‚ Vernier Gas Pressure Sensor‚ utility clamps‚ ring stand‚ a leaf with its stem‚ plastic tubing clamps‚ a pipette‚ a refrigerator‚ 300 milliliter
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Plant Tissues A mature vascular plant (any plant other than mosses and liverworts)‚ contains several types of differentiated cells. These are grouped together in tissues. Some tissues contain only one type of cell. Some consist of several. Meristematic The main function of meristematic tissue is mitosis. The cells are small‚ thin-walled‚ with no central vacuole and no specialized features. Meristematic tissue is located in • the apical meristems at the growing points of roots and stems. • the
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investigate and compare the distribution density of stomata in the upper and lower epidermis of a dicotyledonous leaf. Stomata are the principle means of gas exchange in plants. Stomata are small pores they are controlled by guard cells which control the opening and closing of stomata. Stomata allow carbon dioxide to enter the plant‚ and allow water and excess oxygen to escape. About 90% of water is lost from the leaf during transpiration. The number of stomata on leaf surface varies among different
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towards the leaves. The mechanisms ’in charge’ of the movement of water within the xylem is transpiration pull. This is where the water which is evaporating (as water vapour) through the stomata in the leaves is pulling the water at the bottom of the plant (roots and bottom of xylem) up towards the leaves. This is a passive process (as described above). As the water evaporates through the leaves at the top
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How to Plant & Grow Moringa The Moringa is a fast growing tree that can reach up to 3 meters in its first year. Moringa is an ideal plant to grow in your own backyard. Get a little Moringa in your diet‚ you can grow your own multivitamin! The Moringa tree grows to about 10 tall‚ with drooping branches. It thrives in subtropical and tropical climates‚ giving fruit and flowers continually. However Moringa grows best in dry‚ sandy soil. This makes it an ideal tree to grow in semi-desert conditions
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Title: Transpiration Aim: To study the significance of the pattern of stomatal distribution in Coleus and Lucky bamboo leaf Theory: Transpiration is the loss of water vapour from the surface of the plants due to evaporation. Transpiration can help the uptake of water in the xylem due to transpiration pull. During transpiration‚ mesophyll cells lose water continuously to the air space. This decreases the water potential of the mesophyll cells. Water is then drawn from their neighbouring cells
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EXPERIMENT No. 3 Objective :- To prepare a temporary mount of a leaf peel to show stomata. B) Materials required :- Fresh leaves of plant‚ compound microscope‚ glass slides‚ cover slips‚ water‚ glycerine‚ safranine‚ blotting paper‚ needles‚ brush etc. C) Theory :- i) Stomata are minute pore present on the surface of the leaves. ii) Though they are found on both the upper and lower epidermis of the leaf‚ they are more in number on the lower
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Plants grow when put under a sunlight. If a plants is placed under a red light‚ a blue light‚ a green light‚ and sunlight then which will grow the most? The hypothesis was if a plant is placed under a blue‚ red‚ green and sunlight‚ then the plant under the green light will grow the tallest of all plant. The experiment’s independent variable was the type of light the plant is placed under. The dependent variable was the growth of plants (in cm). Some variables that were ceped the same was the amount
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