PPT-Tropisms and Turgor Pressure

TEKS 77C Tropism The response of plants to external stimuli Phototropism The tendency of a plant to grow towards light Geotropism Gravitropism The tendency of a plant to grow in a direction in response to gravity rootsdown. Blood pressure normally rises and falls throughout the day but it can cause health problems if it stays high for a long time High blood pressure can lead to heart disease and strokeleading causes of death in the United States Are you at risk One in Dr. Caren Chang. Dept of Cell Biology and Molecular Genetics. University of Maryland, College Park. carenc@umd.edu. 301-405-1643 (office phone). A. ppropriate responses to internal and external . signals . How Plants Respond to External . Stimuli. Essential Standards. 6.L.. 2 Understand . the flow of . energy through . ecosystems and the responses of populations to . the biotic . and . abiotic. factors in their environment.. Please review the information on the following slide in order to understand the differences between a mushy and crispy apple at both the cellular level and tissue level.. C. reate entry #11 in your journal called: “Turgor Pressure/Lamella”. that your blood exerts against your arteries as it is pumped through your body by the heart. The pressure in the arteries . increases. when the heart beats and . decreases. while it is resting. What is blood pressure?. To reach your hands and feet, blood has to leave your heart (Left Ventricle) under very . high pressure. . . Blood Pressure. The aorta . has the highest pressure. (100mm Hg). As the blood gets farther away and the blood vessels get smaller, the pressure decreases. . Forces in Living Things Lab In science, there is a very specific definition for the word “work” Work only takes place if there is a force and a motion. As you go through these labs, think about what forces are acting on the plants and if there is any motion. Forces in Living Things Lab In science, there is a very specific definition for the word “work” Work only takes place if there is a force and a motion. As you go through these labs, think about what forces are acting on the plants and if there is any motion. DruckTest GaWa EX• Meetstherequirementsof469• Designedforcondition-basedmaintenanceaccordingto495• Ruggedhand-heldinstrumentswithergonomic GAS WATER DETECTION OF CABLE FAULTS Typical applic JEFFREY PINE SUSCEPTIBILITY TO JEFFREY PINE BEETLE Nancy Grulke USDA Forest Service ngrulke@fs.fed.us Assumptions  Bark beetle attacks are more common in dense stands or in marginal populations The horizontal distribution of air pressure on the globe is studied on the basis of Isobars. If we look at the globe then it appears that there is certain definite system of high and low pressure.. If, for generalization, the globe is considered to be homogeneous (either of land or water), then there should be regular and systematic zonal distribution of high and low pressure but the regularity of pressure belts is distributed due to unequal distribution of land and water on the globe. . Phototropism. Geotropism . Thigmotropism. Hydrotropism. Chemotropism. Thermotropism. 3 main types. TROPISM. Plant growth in response to a stimulus . (“tropo” – ”turn”) . *Can be positive or negative. (Top part of flap). Turgor Pressure . – internal water pressure that prevents . wilting. and provides support.. -----------------------------------------------------------------------------. Tropisms. Do Now: Convert the following units of pressure. 249 . torr. to . atm. 10432 Pa to . kPa. 2534 . kPa. to mmHg. What causes the pressure of a gas in a closed container?. Impacts of gas molecules with walls of container.