BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 26, Problem 3SA
Summary Introduction
Introduction:
Water is a chemical substance that is vital to support all life forms. In plants, water is required for carrying out various essential functions including photosynthesis. The water is transported in plants from the roots to its leaves.
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Sugar transport from leaves to roots occurs by_______ . a. a pressure gradient inside sieve tubes b. different solutes at source and sink regions c. the pumping force of xylem vessels d. evaporation, tension, and cohesion
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Chapter 26 Solutions
BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
Ch. 26 - Prob. 1SACh. 26 - Prob. 2SACh. 26 - Prob. 3SACh. 26 - Prob. 4SACh. 26 - The nutrition of some plants is enhanced by a...Ch. 26 - Water evaporation from plant parts is called...Ch. 26 - Prob. 7SACh. 26 - Prob. 8SACh. 26 - Sieve tubes are part of ___________. a. cortex c....Ch. 26 - Prob. 10SA
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- The primary growth of a plant is due to the action of the ________. a. lateral meristem b. vascular cambium c. apical meristem d. cork cambiumarrow_forwardThe activity of lateral meristems_____ older roots and stems. a. lengthens b. thickens c. both a and barrow_forwardThe first formed primary xylemelements are called ___________.A. MetaxylemB. ProtoxylemC. Xylem fibresD. Xylemp arenchymaarrow_forward
- The ________ forces selective uptake of minerals in the root. a. pericycle b. epidermis c. endodermis d. root caparrow_forwardWith stomata closed, a waterproof cuticle______ . a. minimizes water loss through plant surfaces b. permits gas exchange between the plant and the air c. both a and barrow_forwardWhen guard cells swell,______ . a. transpiration ceases c. stomata open b. sugars enter phloem d. root cells diearrow_forward
- . Which of the following is not a typical plant response to oxygen deficit due to flooding? * A. Aerenchyma formation B. Hyponastic growth of submerged leaves C. Stomatal closure D. Induction of anaerobic stress proteinsarrow_forwardThe conducting tubes in a vascular cylinder are______ . a. endodermis d. xylem only b. pericycle e. xylem and phloem c. root cortex f. companion cellsarrow_forwardRoots and shoots lengthen through activity at______ . a. apical meristems c. vascular cambium b. lateral meristems d. cork cambiumarrow_forward
- Plant regions of continuous growth are made up of ________. a. dermal tissue b. vascular tissue c. meristematic tissue d. permanent tissuearrow_forwardPruning plants can promote lateral stems and increased plant biomass by _____________. Select one: a. suppressing cytokinin transport b. suppressing auxin transport c. promoting cytokinin transport d. promoting auxin transportarrow_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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