Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)
12th Edition
ISBN: 9780135755785
Author: Gerald Audesirk, Teresa Audesirk
Publisher: PEARSON+
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Chapter 44, Problem 4MC
Summary Introduction

Introduction:

The process of absorbing water through root hairs by the means of capillary action and transpiration pull is water absorption. The water from the roots moves from the various cells until it reaches vascular tissues, from where the water moves to leaves (photosynthetic center).

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Minerals dissolved in watera. enter root epidermal cells by active transport.b. take an extracellular pathway through roots to thevascular cylinders.c. are transported up through phloem to the leaves.d. enter root cortex cells by diffusion.
After sucrose enters sieve tubes,a. it is removed by the source.b. water follows passively by osmosis.c. it is driven by active transport to the source, which is usuallythe roots.d. stomata open so that water flows to the leaves.e. All of these are correct.
Which of the following pathways best summarizes the route of a mineral that isabsorbed by a plant? a.  Root hairs → epidermis → cortex → endodermis → pericycle → xylem b. Root hairs → epidermis → endodermis → cortex → xylem c. Root hairs → pericycle → endodermis → cortex → xylem d. Root hairs → endodermis → cortex → pericycle → xylem

Chapter 44 Solutions

Pearson eText Biology: Life on Earth with Physiology -- Instant Access (Pearson+)

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