Biology
5th Edition
ISBN: 9781260487947
Author: BROOKER
Publisher: MCG
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Chapter 39.4, Problem 1CS
Summary Introduction
To draw: A model showing the way in which gravity might impact plant size by influencing transport.
Introduction: The plant's growth with respect to the effect of gravity is called gravitropism. This mechanism is controlled by plants growth hormones that are known as phytohormones. The auxin helps in the plant elongation ad plays an important role in deciding the plant height concerning the unnatural changes in gravity.
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Describe how the water potential of a leaf changes throughout the course of a 24-hour period. What is driving this change? How does the water potential of this leaf compare to the water potential of a root in the same plant during the same period? How does it compare to the soil underneath the plant?
Please fast and properly explain.
Instruction: FILL IN THE BLANKS
1. Vascular tissues are classified as _________________ tissue. That is, they are composed of more than one kind of cells and do not undergo differentiation. The xylem tissue in the primary plant body is called primary xylem and is produced specifically by the _____________ (meristem).
2. The large, highly vascularized leaves that function for photosynthesis in most vascular plants is called _____________, while the spore bearing leaves is called _________.
3. In the non vascular plants, the plant structure that functions for photosynthesis is the _______________, while the part that anchors the plant to the ground is the ________.
4. In the xylem, the perforation plates of ______________ is a counterpart of the ______________ of the sieve tube element in terms of structure and function. Sieve tube elements are the main conducting cells of the _______________ tissue.
5. In the flowering plants, the ______________ generation is large and often…
Direction: Explain the following in paragraph form consists of at least five sentences
Stomates must be open for evaporation to occur. Going back to the last lesson, how plant transport and gas exchange happens?
Chapter 39 Solutions
Biology
Ch. 39.2 - Describe the direction of water movement when a...Ch. 39.3 - Prob. 1CSCh. 39.4 - Prob. 1CSCh. 39.4 - Prob. 1CCCh. 39.4 - Prob. 2CCCh. 39.4 - Prob. 3CCCh. 39.4 - Prob. 4CCCh. 39.4 - Prob. 5CCCh. 39.4 - Prob. 1EQCh. 39.4 - Prob. 2EQ
Ch. 39.4 - Prob. 6CCCh. 39.4 - Core Skill: Connections Look back to Figure 36.16,...Ch. 39 - Prob. 1TYCh. 39 - Prob. 2TYCh. 39 - Prob. 3TYCh. 39 - Prob. 4TYCh. 39 - Prob. 5TYCh. 39 - Which of the following statements best explains...Ch. 39 - What features of water explain how it can be drawn...Ch. 39 - Prob. 8TYCh. 39 - Prob. 9TYCh. 39 - Prob. 10TYCh. 39 - Prob. 1CQCh. 39 - Prob. 2CQCh. 39 - Prob. 3CQCh. 39 - Prob. 1COQCh. 39 - Prob. 2COQ
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- Part F - How to determine transpiration rates by the whole plant method Which of the following best explains why the plant in front of the fan lost more mass than the control plant in normal room conditions? The leaves of the plant in front of the fan had the highest initial water potential and therefore lost the most water. The control plant had lower initial water potential in the root area and therefore lost less water. The control plant had a lower initial mass and so lost water at a decreased rate. The fan rapidly moves water molecules away from the leaf surface, lowering the water potential.arrow_forwardWHAT IF? If you removed the root cap from a root,would the root still respond to gravity? Explain.arrow_forwardPlease help me with hw. Tysm❤️ What type of meristem is found only in monocots, such as lawn grasses? Explain how this type of meristematic tissue is beneficial in lawn grasses that are mowed each week. Which plant part is responsible for transporting water, minerals, and sugars to different parts of the plant? Name the two types of tissue that make up this overall tissue, and explain the role of each.arrow_forward
- of this practice with respect to plant nutrition?3. WHAT IF? How would adding clay to loamy soil affectcapacity to exchange cations and retain water? Explain.arrow_forwardWater potential a) The value for Ψ in root tissue was found to be -3.3 bars. If you take the root tissue and place it in a 0.1 M solution of sucrose at 20°C in an open beaker, what is the Ψ of the solution, and in which direction would the net flow of water be? b) NaCl dissociates into 2 particles in water: Na+ and Cl-. If the solution in question 4 contained 0.1M NaCl instead of 0.1M sucrose, what is the Ψ of the solution, and in which direction would the net flow of water be? c) A plant cell with a Ψs of -7.5 bars keeps a constant volume when immersed in an open-beaker solution that has a Ψs of -4 bars. What is the cell’s ΨP?arrow_forwardWhat does hydraulic conductance mean in the following? The hydraulic limitation hypothesis proposes that reduced growth in taller trees is caused by decreased photosynthesis resulting from a decrease in hydraulic conductance promoted by a longer root-to-leaf flow path.arrow_forward
- Q3. How many accessory and guard cells are found in one stomatal complex of the specimen? Q4. Base on your answer in Q3, what type of configuration of stomatal complex is exhibited by the specimen?arrow_forwardQ.2. Measure CO2 evolution during respiration of germinating seeds by titration method.arrow_forwardQ3. How many accessory and guard cells are found in one stomatal complex of the specimen?arrow_forward
- . Briefly discuss the following questions. (Minimum of 20 words and maximum of 50 words).1.Discuss the homeostatic process in plants 2.How do plants minimize water loss? 3. Explain on how plants can get sick.4. Differentiate Nastic movements vs tropism.5. Explain how tropism helps plants to survive.6. Explain how do plants move water and nutrients against the pull of gravity?arrow_forwardWatch the suggested videos for Plants Response to Stimuli. a. GeotropismGeotropism Experiment (2:48 minutes)https://www.youtube.com/watch?v=AEo5UsPeB5gb. PhototropismPhototropism Experiment (2:16 minutes)https://www.youtube.com/watch?v=WZ1NRP3OF5w a. For each experimental set up (geotropism and phototropism), identify the dependent and independent variables that have contributed to how plants responded to the stimuli.arrow_forwardMAKE CONNECTIONS Note three ways the propertiesof water contribute to soil formation. See Concept 3.2.arrow_forward
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