BIOLOGY:CONCEPTS+APPL.(LOOSELEAF)
10th Edition
ISBN: 9781305967359
Author: STARR
Publisher: CENGAGE L
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Chapter 26, Problem 7SA
Summary Introduction
Introduction:
Water is a chemical compound 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
. 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 proteins
The ______ 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 strip
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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- Water transport from roots to leaves occurs by a. evaporation, tension, and cohesion b. a pressure gradient inside sieve tubes c. the pumping force of xylem vessels d. different solutes at source and sink regionsarrow_forwardRoot hairs____ . a. conduct water from cortex to aboveground shoots b. increase the root’s surface area for absorption c. anchor the plant in soilarrow_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_forward
- The first formed primary xylemelements are called ___________.A. MetaxylemB. ProtoxylemC. Xylem fibresD. Xylemp arenchymaarrow_forwardNewly-formed root cells begin to form different cell types in the ________. a. zone of elongation b. zone of maturation c. root meristem d. zone of cell divisionarrow_forwardThe ________ forces selective uptake of minerals in the root. a. pericycle b. epidermis c. endodermis d. root caparrow_forward
- Which of the following plant hormones is produced in the root meristems, travel upward and in higher concentration counter the apical dominance caused by ____________? a. Gibberellins b. Ethylene c. Cytokinin d. Abscisic acidarrow_forwardLeaf tissue with sunken stomata will have ___ humidity near the stomata and ___ transpiration. Select one: a. increased, decreased b. decreased, increased c. increased, increased d. decreased, decreasedarrow_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_forward
- Choose 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_forward(4) a. Which one of the following process is responsible for carrying water to the leaves of a tall plant through xylem vessels : a. Transpiration pull b. Root pressure c. b. Absorption through roots Euron The reason for my answer is: a. Due to a force of moving water upward through xylem vessels b. Deficiency of water in the xylem C. Due to a upward pressure exerted by roots d. Removal of water from the leaves and fill that deficiencyarrow_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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