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Chapter 23: Problem 7

The dermal tissue of a plant provides __ for the plant. a. transport of water b. transport of minerals c. support d. protection

Short Answer

Expert verified
d. protection

Step by step solution

01

- Understand the Role of Dermal Tissue

Dermal tissue in plants primarily serves as the outer protective covering or 'skin' of the plant.
02

- Analyze Each Option

Review what each option represents: a. Transport of water - typically a function of vascular tissue (xylem). b. Transport of minerals - also a function of vascular tissue (xylem and phloem). c. Support - traditionally the role of structural tissues like sclerenchyma. d. Protection - aligns with the role of dermal tissue.
03

- Match the Role with the Correct Option

Given the role of dermal tissue as the protective covering, the correct answer must relate to protection.

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Key Concepts

These are the key concepts you need to understand to accurately answer the question.

plant protection
The dermal tissue in plants is crucial for plant protection. It serves as the plant's first line of defense against various external factors. This tissue forms the outermost layer, known as the epidermis, which acts similarly to human skin. It protects plants from:
  • Environmental stressors such as extreme temperatures and wind.
  • Pest and pathogen attacks by creating a barrier that is often waxy.
  • Water loss through specialized cells called guard cells that control the opening and closing of stomata.
Furthermore, dermal tissue may also include trichomes, which are tiny hair-like structures that deter herbivores or reduce water loss by reflecting sunlight.
plant tissue types
Plants have various tissue types that each serve a unique purpose. These tissues can be broadly classified into three main types:

  • Dermal Tissue: This is the outer protective layer of the plant. It includes structures like the epidermis, cuticle, and trichomes. Dermal tissues function primarily in protection and gas exchange.
  • Vascular Tissue: This type is responsible for transporting water, minerals, and nutrients throughout the plant. There are two main types: xylem and phloem. Xylem transports water and minerals from roots to other parts of the plant, while phloem distributes sugars and other organic compounds.
  • Ground Tissue: Found between dermal and vascular tissues, this type plays roles in photosynthesis, storage, and support. Subtypes include parenchyma, collenchyma, and sclerenchyma - each serving different supportive roles depending on their structure and location within the plant.
Each type of tissue integrates and functions together, ensuring the plant can grow, reproduce, and survive in its environment.
plant anatomy
Understanding plant anatomy is key to appreciating how different tissues and structures support the plant鈥檚 life processes. Here are main plant structures:
  • Roots: These anchor the plant and absorb water and nutrients from the soil. They often have specialized tissues for storage and transport.
  • Stems: These support the plant and act as conduits for nutrients and water between the roots and leaves. They contain vascular tissues that create pathways for transport.
  • Leaves: Mainly involved in photosynthesis, leaves contain a variety of tissues for light capture and gas exchange, including chloroplasts within their cells.
Additionally, plants have reproductive structures, including flowers, seeds, and fruits, ensuring the continuation of the species. Each of these parts works in harmony, utilizing various tissue types to sustain growth, reproduce, and respond to their environment.

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Most popular questions from this chapter

What is the advantage of a root cap covering the apical meristem of a root? a. It provides protection and helps in absorption. b. It increases the surface area of root for absorption of water and minerals. c. It protects meristem against injury and provides lubrication for the growing root to dig through soil. d. It protects the meristem against injury and helps in absorption.

How could the morphology of cells observed microscopically indicate that the specimen is probably simple tissue? a. Simple tissue is made of cells that have different shapes, so the specimen will show oval, polygonal, and other shapes. b. Simple tissue is made of cells that have intercellular spaces, so the specimen will contain spaces. c. Simple tissue is made of cells that are elongated and tapered, so the specimen will show elongated cells. d. Simple tissue is made of cells that are morphologically similar, so the specimen will appear uniform.

A student examines a plant part and concludes that it is part of a stem. The presence of _____fully justifies the student鈥檚 conclusion. a. vascular tissue b. nodes and internodes c. epidermal layer d. stored carbohydrates

Solute potential decreases when solutes are added to a cell. The consequence is to draw water into the cell. Which of these terms corresponds to solute potential? a. water potential b. pressure potential c. osmotic potential d. negative potential

A student reported vascular tissue while inspecting a cross-section of a plant stem under the microscope. Which cells would allow the student to identify vascular tissue? a. tracheids, vessel elements, sieve-tube cells, and companion cells b. cells actively dividing at the apex of the stem c. parenchyma cells at the center of the section d. cells covered by a cuticle at the outside edge of the section
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