Room: Fan:Light:Mist:2.Explain why each of the conditions causes an increase or decrease in transpiration compared with the control.ConditionEffectExplanation of EffectRoom FanLightMist3.Explain the role of water potential in the movement of water from soil through the plant and into the air.4.What is the advantage of closed stomata to a plant when water is short in supply? What are the disadvantages?5.Describe the several adaptations that enable plants to reduce water loss from their leaves. Include both structural and physiological adaptations.6.Why did you need to calculate leaf surface area in tabulating your results?
Materials (9B): nut, bolt, 50% ethanol, distilled water, 50% glycerin, slide, cover slip, microscope, plant stemProcedure (9B): 1.Obtain nut-and-bolt microtome.2.Turn the nut until it is almost at the end of the bolt, forming a small “cup.”3.Using a clean, single edge razor blade, cut a thin piece of plant stem (approximately 5mm—slightly longer than the depth of the “cup” in the nut) from the base of your plant. Make 2 cuts so that both ends are freshly cut.4.Stand the stem up on its end in the opening of the nut and carefully pour melted paraffin into the nut until it fills the opening, completely covering the stem.