Biology
Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 44, Problem 12RQ
Summary Introduction

To describe:

The movement of water and minerals through the xylem.

Introduction:

The water is available for the plants in pores of the soil. The plants absorb the water from the roots and the conducting tissues (xylem) transport the water to the requisite sites of the plant.

Summary Introduction

To describe:

The unidirectional movement of water in xylem.

Introduction:

The food is transported bidirectionally through the phloem tissues but the water and dissolved minerals directed in one direction only. The phloem transported synthesized food where the food is needed, such as stored food is transported from roots to leaves whenever required or leaves synthesize food and transports to roots for storage.

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Students have asked these similar questions
Why can xylem transport water and minerals using deadcells, whereas phloem requires living cells?
If the xylem is under high tension, how will the flow rate in the xylem will be affected?
Both cohesion-tension and root pressure are mechanisms for moving water in the xylem.  What does it mean when it says that cohesion-tension pulls water, but root pressure pushes water?

Chapter 44 Solutions

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