Plants balance water loss against photosynthesis by controlling the opening of its stomata as a response to environmental conditions. Indicate the level of transpiration rate (low, medium, high) for the environmental conditions below and explain your answer. Clear skies, hot, moist soil Clear skies, hot, dry soil Cloudy, hot dry soil

Plants balance water loss against photosynthesis by controlling the opening of its stomata as a response to environmental conditions. Indicate the level of transpiration rate (low, medium, high) for the environmental conditions below and explain your answer. Clear skies, hot, moist soil Clear skies, hot, dry soil Cloudy, hot dry soil

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter36: Roots And Mineral Nutrition

Section36.3: The Soil Environment

Problem 11LO

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Which of the following is the process of water movement through a plant and its evaporation from leaves? Group of answer choices Transpiration Respiration Evaporation Photosynthesis Perspiration
Rubisco can bind with CO2 or 02. When it binds with O2, it "wastes" some of the energy captured from the sun. This reaction is photorespiration and is favored at high temperatures and low CO2:02 ratios. Which of the following strategies should limit photorespiration (select all that apply). Keep stomata closed. Keep stomata open. Physically separate the light and light-independent reactions. Temporally separate CO2 uptake and fixation.
Choose the statements that apply to transpiration in the cohesion-tension theory. (Check all that apply) Check All That Apply The H-bonds in water allow for cohesion. Water pressure builds in roots to drive water up the plant. Exposed water in leaves evaporates into drier air. Water forms a continuous stream from leaf into the root. In addition to water, heat is lost cooling the plant during transpiration.
Draw a diagram illustrating how latent heat flux is driven by humidity gradients between the inside of a stomatal cavity, the leaf surface and the bulk atmosphere.
What are potential outcomes when a plant's stomata close in response to heat and water stress? Select all that apply. CO2 and O2 may compete for the active site of rubisco. Photorespiration is more likely to occur. Photosynthesis is more efficient. Gas exchange comes to a halt.
Which statement is correct? None of the statements are correct. On a very still (little wind) day, the microclimate at the leaf surface has a low water potential, thus there is little transpiration loss. On a very windy day, the microclimate at the leaf surface has a high water potential, thus there is a lot of water lost via transpiration. On a very still (little wind) day, the microclimate at the leaf surface has a high water potential, thus there is little transpiration loss.
Hydrogen atoms make up about 6% of the dry mass of plants. Answer True or False for the following Plants get some hydrogen atoms from water. true Plants get some hydrogen atoms from air. true Plants get some hydrogen atoms from sunlight. false v Plants get some hydrogen atoms from soil. true
Draw and label the leaf/ air interface. Describe ways leaves might be designed to limit water loss and how that works
Given three environmental factors, what are its infuence in the rate of transpiration in the plant? Environmental Factors Effect Explanation Light Wind / Air current Humidity
Briefly explain how water moves through a plant. Include how and why water moves through both xylem and phloem.
The use of cryoprotectants can interfere with normal metabolic processes in cells and tissues, resulting in a trade-off between protection and function. Question options: True False Positive feedback mechanisms are essential for the maintenance of homeostasis in the body. Question options: True False An example of a trade-off in plant water use is the trade-off between the efficiency of water use versus the rate of water loss through transpiration. Question options: True False
Describe how water molecules move into the plant from the soil. Give an example that includes the concept of water potential.