What is Life? A Guide to Biology with Physiology
3rd Edition
ISBN: 9781464157745
Author: Jay Phelan
Publisher: W. H. Freeman
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Chapter 17, Problem 13MC
Summary Introduction
Introduction:
The cohesion-tension mechanism is the mechanism by which the xylem transports water.
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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
Which of the following would allow a plant to tolerate a cold environment?
Group of answer choices
A. producing small, smooth leaves with a small boundary layer
B. generating sparsely placed leaf hairs to reflect solar radiation
C. increasing the proportion of unsaturated fatty acids in cell membranes
D. increasing evapotranspiration
E. increasing the proportion of leaf mass relative to total body mass
Many woody plant species are capable of growing to incredible heights, despite the need to transport water throughout the length of the plant. The ability of these tall plants to transport water to their tops is a direct result of of water molecules.
Group of answer choices
Cohesion
Water's High Specific Heat
Adhesion
Evapotranspiration
Chapter 17 Solutions
What is Life? A Guide to Biology with Physiology
Ch. 17 - Prob. 1SACh. 17 - Prob. 2SACh. 17 - Prob. 3SACh. 17 - Prob. 4SACh. 17 - Prob. 5SACh. 17 - Prob. 6SACh. 17 - Prob. 7SACh. 17 - Prob. 8SACh. 17 - Prob. 9SACh. 17 - Prob. 10SA
Ch. 17 - Prob. 11SACh. 17 - Prob. 12SACh. 17 - Prob. 13SACh. 17 - Prob. 14SACh. 17 - Prob. 1MCCh. 17 - Prob. 2MCCh. 17 - Prob. 3MCCh. 17 - Prob. 4MCCh. 17 - Prob. 5MCCh. 17 - Prob. 6MCCh. 17 - Prob. 7MCCh. 17 - Prob. 8MCCh. 17 - Prob. 9MCCh. 17 - Prob. 10MCCh. 17 - Prob. 11MCCh. 17 - Prob. 12MCCh. 17 - Prob. 13MCCh. 17 - Prob. 14MC
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- Describe the pathway water would follow from the soil to the stem of a plant. Describe the water's movement through the cells, tissues, and systems of the plant body.arrow_forwardCation Exchange capacity is: Group of answer choices a. The amount of cations that can be held by a given mass of soil. b. Affected by soil texture c. Affected by the amount of organic matter/Humus in a soil. d. Affected by the amount of clay in a given soil e) All of the abovearrow_forwardA principle of biology is that living organisms maintainhomeostasis. Explain how several structural features helpvascular plants maintain stable internal water content.arrow_forward
- 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.arrow_forwardWhat chemical element, collected by the plant from the soil moisture, is directly involved with ATP rejuvenation? Select one: a. Potassium b. Phosporous c. None of these answers d. Carboxylase e. Cadmiumarrow_forwardExamine the sketch of the xylem elements below (they are displayed horizontally to save page space), these elements are from top to bottom A, B, C, and D. In examining the graph below provide the sequence from left to right that you would expect the vessel elements to fall on the graph. 120 100 80 60 40 20 -12 -10 -8 -6 -4 -2 2 Xylem Water Pressure (Mpa) Percent Loss in Xylem Conductancearrow_forward
- An important factor for plants is the amount of water lost for each molecule of carbon dioxide absorbed. How could the plant be harmed if it loses a lot of water for each carbon dioxide molecule, that is, if the ratio is high? Would this be more important for a plant in a rainy habitat or one in a desert?arrow_forwardExplain the difference between the adhesion and cohesion properties of water molecules, and discuss how the adhesion-cohesion mechanism affects the process of water transport in plants. Please also add diagrams/ illustrations to support your discussion.arrow_forwardCompare and contrast the movement of water into the leaf to the movement of carbon dioxide into the leaf.arrow_forward
- An aqueous plant found in its natural environment would be in a solution known as: a. Hypotonic b. Isotonic c. Hypertonicarrow_forwardDescribe the pathway water would take up the stem to the leaf of a plant. Describe the water's movement through any cells, tissues, and/or systems of the plant body.arrow_forwardThe loss of water from a plant by transpiration cools the leaf. Movement of water in transpiration requires both adhesion to the conducting walls and wood fibers of the plant and cohesion of the molecules to each other. A scientist wanted to increase the rate of transpiration of a crop species to extend its range into warmer climates. The scientist substituted a nonpolar solution with an atomic mass similar to that of water for hydrating the plants. What do you expect the scientist's data will indicate from this experiment? The rate of transpiration will be the same for both water and the nonpolar substance. Transpiration rates will fall to zero as nonpolar compounds do not have the properties necessary for adhesion and cohesion. Transpiration rates will increase as nonpolar compounds undergo adhesion and cohesion with wood fibers more readily than water. The rate of transpiration will be slightly lower with the nonpolar substance as the plant will not have evolved with the nonpolar…arrow_forward
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