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Biology: The Unity and Diversity o...

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

Solutions

Chapter
Section
BuyFindarrow_forward

Biology: The Unity and Diversity o...

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

A waxy cuticle helps land plants ___ .

  1. a. oonserve water
  2. b. take up carbon dioxide
  3. c. reproduce
  4. d. stand upright

Summary Introduction

Introduction: The plants absorb water and minerals across their body. Cuticle is the waxy protective outer covering for the epidermal cells of leaves and other parts including aerial plant parts. It is impermeable to water and restricts entry of pathogens. It prevents water loss due to evaporation.

Explanation of Solution

Reason for the correct statement:

Cuticle is the waxy covering secreted by the plant sporophyte. Some bryophytes and all vascular plants have cuticle. It consists of stomatal pores across it. They contribute in exchange of gases by opening or conserve water in response to water availability by closing.

Hence, option a. is correct.

Reasons for the incorrect statement:

Option b. is given as “take up carbon dioxide”...

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