Study Guide for Campbell Biology
11th Edition
ISBN: 9780134443775
Author: Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Jane B. Reece, Martha R. Taylor, Michael A. Pollock
Publisher: PEARSON
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Chapter 36, Problem 12TYK
Summary Introduction
Introduction: The process of secretion of water droplets from the pores of the plants is referred to as guttation. It is a release of on the tips or edges of the vascular plants in the form of droplets. This process takes place through hydathodes, the openings which are located on the leaf margins.
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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 C
According 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.
Which of the following is/are false regarding the phloem?
A. It transports starch from the leaves to the stem.
B. It transports sucrose from the leaves to the roots.
C. It is located lateral to the xylem in tree stems.
D. Unlike the xylem, majority of the cells are living.
E. A and D
F. B and C
Chapter 36 Solutions
Study Guide for Campbell Biology
Ch. 36 - Prob. 1IQCh. 36 - a. A flaccid plant cell has a water potential of...Ch. 36 - Prob. 3IQCh. 36 - Prob. 4IQCh. 36 - Prob. 5IQCh. 36 - Prob. 6IQCh. 36 - Prob. 1SYKCh. 36 - Prob. 2SYKCh. 36 - If a plant has a phyllotaxy of alternate leaves...Ch. 36 - Prob. 2TYK
Ch. 36 - Prob. 3TYKCh. 36 - Prob. 4TYKCh. 36 - Prob. 5TYKCh. 36 - Prob. 6TYKCh. 36 - Prob. 7TYKCh. 36 - Prob. 8TYKCh. 36 - Prob. 9TYKCh. 36 - Prob. 10TYKCh. 36 - Prob. 11TYKCh. 36 - Prob. 12TYKCh. 36 - Prob. 13TYKCh. 36 - Prob. 14TYKCh. 36 - Prob. 15TYKCh. 36 - Your favorite houseplant is wilting. Which of the...Ch. 36 - Prob. 17TYKCh. 36 - Which of the following mechanisms explains the...Ch. 36 - Prob. 19TYKCh. 36 - Prob. 20TYK
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- 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_forwardChoose the incorrect statement: a. Bundle sheath cells surround the vascular bundles in both eudicots and monocots. b. Phloem sieve elements contain a higher concentration of amino acids than xylem vessels. c. Phloem sieve elements and xylem tracheary elements are similar at maturity because they are both dead. d. Root hairs are the primary cell type that absorbs water in roots.arrow_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
- A region of active cell division where primary growth occurs is the a. internode.b. apical meristem.c. root nodule.d. cork cambium.e. vascular cambium.arrow_forwardWhat 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 xylemarrow_forwardWhich of the following forces make the movement of water through the xylem possible? * A. Cohesion and adhesion B. Transpiration C. Root pressure D. A and B E. A, B, and Carrow_forward
- Choose the incorrect statement: a. Fusiform and ray initials are formed by the vascular cambium. b. The cork cambium produces the periderm layer, a thicker tougher outer layer that replaces the epidermis. c. Wood is composed of secondary xylem. d. The vascular cambium separates the xylem on the outside of the stem and the phloem on the inside.arrow_forwardWhich of the following statements is incorrect? a. Vascular bundles are arranged in a ring in the outer parts of monocot stems in whereas in eudicots they are scattered throughout the stem. b. The cuticle is a hydrophobic layer that covers the aerial part of plants c. Vascular bundle arrangement is different in stem and root. d. The epidermis and periderm form the dermal tissue of plants.arrow_forwardWhen absorption of water by the roots fails to keep up with the rate of transpiration, gain in turgor occurs, and the stomata close. A. Agree, because the transpiration occurs faster than root absorption. D. Disagree, because the condition should be when root absorption is able to keep up with transpiration, then stomates close. B. Disagree, because under this condition, the turgor pressure decreases and the stomates close. C. Agree, because increase in turgor pressure under this condition, closes the stomates.arrow_forward
- Guttation in plants is due to condensation of water vapor and occurs through the hydathodes. D. Disagree, because guttation occurs through the stomates. A. Agree, because guttation occurs through the hydathodes. B. Disagree, because it is root pressure that causes guttation. C. Agree, because during night time, water condenses due to drop in temperature.arrow_forwardThe pressure-flow model of phloem transport states thata. phloem content always flows from the leaves to the root.b. phloem content always flows from the root to the leaves.c. water flow takes sucrose from a source to a sink.d. water pressure creates a flow of water toward the source.e. Both c and d are correct.arrow_forwardThe ______ is impermeable to passive water transport, and regulates what enters the xylem. Select one: a. meristem b. stomata c. palaside parenchyma d. guard cells e. casparian striparrow_forward
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