Biology
Biology
12th Edition
ISBN: 9780134813448
Author: Audesirk, Teresa, Gerald, Byers, Bruce E.
Publisher: Pearson,
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Chapter 45, Problem 9RQ
Summary Introduction

To determine:

How do monocot and dicot seedlings protect the delicate shoot tip during seed germination.

Introduction:

When the embryonic plant which is present within seed start growing in the form of sprouting, break a dormancy period, and forms a seedling then the seeds are said to be germinated. During germination, root grows first and provides water and mineral from the soil to the developing shoots.

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What promotes cell division and elongation in shoot?
Why can a monocot like an iris branch and increase its number of leaves? Is the fact that the shoot is a rhizome with adventitious roots important? Is water transported from one end of the shoot to the other?
Examine the shoot system of a mature plant (Coleus blumei). Identify the shoot tip, nodes, internodes, leaves, and axillary buds. Each unit of stem that consists of a leaf, axillary bud and internode is referred to as a phytomere. Note that axillary buds always occur above a leaf. Axillary buds give rise to branch shoots. Thus, branching in a shoot system is exogenous (of external origin). How does this compare to branching in a root system?

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