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BiologyBiology: The Unity and Diversity of Life (MindTap Course List)15th Edition
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Lignin supports. the stems of ___ . a. mosses b. hornworts c. ferns d. liverworts

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Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332

Solutions

Chapter
Section
Problem 1DAA
Problem 2DAA
Problem 3DAA
Problem 1SQ
Problem 2SQ
Problem 3SQ
Problem 4SQ
Problem 5SQ
Problem 6SQ
Problem 7SQ
Problem 8SQ
Problem 9SQ
Problem 10SQ
Problem 11SQ
Problem 12SQ
Problem 13SQ
Problem 14SQ
Problem 15SQ
Problem 1CT
Problem 2CT
Problem 3CT
Problem 4CT
Problem 5CT
BuyFindarrow_forward

Biology: The Unity and Diversity o...

15th Edition
Cecie Starr + 3 others
Publisher: Cengage Learning
ISBN: 9781337408332
Chapter 22, Problem 2SQ
Textbook Problem
11 views

Lignin supports. the stems of ___ .

  1. a. mosses
  2. b. hornworts
  3. c. ferns
  4. d. liverworts

Summary Introduction

Introduction: Lignin is a natural polymer found in plant cell walls. Lignin and cellulose both function together and provide structural support to the plants. Lignin is hydrophilic and allows the transport of water in the vascular tissues through tracheal elements. It is present in the walls of xylem cells. This helps the vascular plants to stand tall and branch further.

Explanation of Solution

Reason for the correct statement:

Ferns are the diverse seedless vascular plants. The vascular plants consist of lignin present in their secondary cells walls. They provide the structural support to the plant by enabling tracheary elements in xylem cells to stand the tension generated during the water transportation. The interconnected vascular strands in the stems provide rigidity and stiffness to maintain their verticality.

Hence, option c. is correct.

Reasons for the incorrect statement:

Option a. is given as “mosses”...

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Biology: The Unity and Diversity of Life (MindTap Course List)
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Ch. 22 - Insect-Assisted Fertilization in Moss Moss sperm...Ch. 22 - Insect-Assisted Fertilization in Moss Moss sperm...Ch. 22 - Insect-Assisted Fertilization in Moss Moss sperm...Ch. 22 - The first land plants were ___ . a. gnetophytes b....Ch. 22 - Lignin supports. the stems of ___ . a. mosses b....Ch. 22 - A waxy cuticle helps land plants ___ . a. oonserve...Ch. 22 - True or false? Ferns produce seeds inside sori.Ch. 22 - ___ attach mosses to soil. a. Rhizoids b. Rhizomes...Ch. 22 - Bryophytes alone have a relatively large ___ and...Ch. 22 - Club mosses, horsetails, and ferns are ___ plants....
Ch. 22 - Coal consists primarily of compressed remains of...Ch. 22 - The spenn of ___ swim to eggs. a. horsetails b....Ch. 22 - A seed is a(n) ___ . a. female gametophyte b....Ch. 22 - The gametophytes of ferns ___ . a. are...Ch. 22 - Which angiosperm lineage includes the most...Ch. 22 - Match the terms appropriately. ____ bryophyte a....Ch. 22 - Match the terms appropriately. ____ ovule a....Ch. 22 - Place these groups. in order of their appearance...Ch. 22 - Early botanists admired ferns but found their life...Ch. 22 - In animals, meiosis of germ cells produces...Ch. 22 - Consider a cherry pit, which is a seed with a...Ch. 22 - Suppose you wanted to make a science fiction film...Ch. 22 - Lignin and vascular tissue first evolved in...

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