EBK BIOLOGY
11th Edition
ISBN: 8220102797352
Author: Raven
Publisher: YUZU
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Textbook Question
Chapter 37, Problem 1A
Which of the following statements is inaccurate?
a. Water moves to areas of low water potential.
b. Xylem transports materials up the plant, and phloem transports materials down the plant.
c. Water movement in the xylem is due, in part, to the cohesive and adhesive properties of water.
d. Water movement across membranes is often due to differences in solute concentrations.
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Which of the following statements is inaccurate?a. Water that evaporates from leaves is ultimately replaced by water diffusing from the xylem.b. Xylem transports water up the plant while phloem transports carbohydrates throughout the plant.c. Water movement in the xylem is largely due to the pressure-flow hypothesis.d. Water movement across membranes is often due to differences in solute concentrations.
Water movement through the xylem needs less pressure than movement through living cells.
A. Agree, because water moves in xylem through diffusion.
B. Disagree, because water needs turgor pressure in order to diffuse.
D. Disagree, beacuse both need equal pressure for materials to pass through xylem and living cells like sievetubes.
C. Agree, because water is non-living while photosynthates are living and must pass through living cells that require pressure.
Which statement(s) is/are false? *
A. A water potential lower than that of the soil draws water into the roots and a water potential lower than that of the stem draws water into the leaf.
B. A water potential lower than that of the soil draws water into the roots and a water potential higher than that of the stem draws water into the leaf.
C. Water potential and solute concentration increases from the roots to the top of the plant.
D. Water enters the plant through the root hairs and exits through the lenticels and stomates.
E. A and D
F. B and C
Chapter 37 Solutions
EBK BIOLOGY
Ch. 37 - Which of the following is an active transport...Ch. 37 - The water potential of a plant cell is the a. stun...Ch. 37 - Hydrogen bonding between water molecules results...Ch. 37 - Water movement through cell walls is a....Ch. 37 - Prob. 5UCh. 37 - The formation of an air bubble in the xylem is...Ch. 37 - Prob. 7UCh. 37 - Stomata open when guard cells a. take up...Ch. 37 - Prob. 9UCh. 37 - A plant must expend energy to drive a....
Ch. 37 - Which of the following statements is inaccurate?...Ch. 37 - If you could override the control mechanisms that...Ch. 37 - Prob. 3ACh. 37 - If you were able to remove the aquaporins from...Ch. 37 - Prob. 5ACh. 37 - If you fertilize your houseplant too often, you...Ch. 37 - How could you detect a plant with a mutation in a...Ch. 37 - Prob. 3SCh. 37 - Prob. 4SCh. 37 - A carrot is a biennial plant. In the first year of...
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- What role do cohesion and adhesion play in xylem transport?a. Like transpiration, they create a tension.b. Like root pressure, they create a positive pressure.c. Like sugars, they cause water to enter xylem.d. They create a continuous water column in xylem.e. All of these are correct.arrow_forwardAccording to the pressure-flow model, sugar is actively transported into phloem anda. enters xylem, where it is moved toward the leaves due to transpiration.b. creates pressure to move water toward the roots.c. is transported out of the leaves through stomata.d. water follows by osmosis, providing pressure that moves the water and sugar through the phloem.arrow_forwardThe formation of an air bubble in the xylem is called a. agitation. b. cohesion. c. adhesion. d. cavitation.arrow_forward
- The process of bulk flow transports fluids in a plant. What are the two main bulk flow processes? * A. Movement of water up the xylem and movement of solutes up and down the phloem B. Movement of water up the phloem and movement of solutes up and down the xylem C. Movement of water up and down the xylem and movement of solutes up the phloem D. Movement of solutes up the xylem and movement of water up and down the phloem E. Movement of solutes down the phloem and movement of water up and down the xylem F. Movement of solutes down the phloem and movement of water up the xylemarrow_forward(3) a. b. The characteristics of water molecules to maintain a continuous column of water is: a. Root pressure b. Transpiration C. d. Forces Cohesion - Addison The reason for my answer is because : a. Releasing water as water vapors b. A pressure excreted by root through root system C. Releasing water from tips of leaves as liquid d. Interaction among water molecules and adsorption of water molecules to walls of xylem vesselsarrow_forwardWhich of the following would require active transport? Select one: O a. Stomata opening b. Potassium moving through an ion channel O c. Water moving through aquaporins O d. Water diffusing into xylem from the root e. The tension in the leaf caused by evaporating waterarrow_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_forwardWhich of the following is true for the function of xylem and phloem? * A. Xylem transports water from leaves to roots; phloem transports sugar from roots to leaves B. Xylem transports sugar from roots to leaves; phloem transports water from leaves to roots C. Xylem transports water from roots to leaves; phloem transports sugar from leaves to roots D. Xylem transports sugar from leaves to roots; phloem transports water from roots to leavesarrow_forwardWhich of the following statements is CORRECT?Aquaporins:a. play an active role in the regulation of water movement in the xylem during mild droughtb. are proteins embedded in the cell walls that transport waterc. play an active role in the regulation of water movement outside the xylem during mild droughtd. are proteins embedded in the mesophyll and bundle sheath apoplast that transport waterarrow_forward
- Which of the following statements is/are false? A. Water is actively transported from source cells into companion cells. B. The transport of sucrose into the Osieve tube elements increases water potential in the phloem. C. The transport of water from the xylem into the phloem increases the O pressure which forces the sucrose water mixture down towards the sink. D. Transpiration cause the water to O move up to the leaves through the vessel elements. E. A and B F. B and Carrow_forwardImagine you have a plant with a water potential of -0.1 MPa in the root tissue. What would happen if you place the roots of this plant in a 0.1 M solution of sucrose (water potential is -0.23 MPa)? The net water flow would be from the tissue into the sucrose solution The net water flow would occur only as ATP was hydrolyzed in the tissue The net water flow would be from the sucrose solution into the tissue The net water flow would be in both directions and the concentration of water would remain equal The net water flow would be impossible to determine from the values given herearrow_forwardThe movement of water out of phloem sap and back into xylem vessels is often associated with which of the following events? active transport of water out of the phloem sap into a source а. b. passive diffusion of phloem sap into a source active transport of sugars out of the phloem sap into a sink C. hydrostatic push (pressure) forcing phloem sap into a sink Od.arrow_forward
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