Biology
Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 44.9, Problem 1TC
Summary Introduction

To determine:

The stage of growth at which leaves act like a sugar sink.

Introduction:

Phloem acts as the food transportation unit. The transportation is bidirectional that is the food is sent to roots for storage and is transported back to leaves or fruits whenever needed. This transportation takes place through a same transportation unit called phloem.

Summary Introduction

To determine:

The sugar source when leaves act as a sink.

Introduction:

The transportation of food takes place through the phloem. Phloem transports the food from the leaves to the roots where it is stored in the cortex cells. This stored food is transferred to the other parts of the plant whenever needed.

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