Chapter 24, Problem 7STP

Summary Introduction

Introduction:

Plant cells can have chloroplasts. Different types of plant cells make up tissues of plants. Each type of plant cell has a particular purpose. There are three types of plant cells which together provide storage and production of food, flexibility, strength, and support.

Answer to Problem 7STP

Correct answer :

The correct answer is option (D) support

Explanation of Solution

Explanation/justification for the correct answer :

Option (D) support. Sclerenchyma is plant cells which on mature, lack cytoplasm, and other living components, but its dense, rigid cell walls remain. These cells provide plant support and are used for the transport of material inside the plant. Such cells form most of the wood that we use for shelter, fuel, etc. So, the correct answer is option (D).

Explanation for incorrect answer :

Option (A) gas exchange. Sclerenchyma cells provide plant support and are used for the transport of material inside the plant. Exchange of gas is the role of parenchyma cells. So, this is an incorrect option.

Option (B) photosynthesis. Sclerenchyma cells provide plant support and are used for the transport of material inside the plant. Photosynthesis is the role of parenchyma cells. So, this is an incorrect answer.

Option (C) food storage. Sclerenchyma cells provide plant support and are used for the transport of material inside the plant. Food storage is the role of parenchyma cells. So, this is an incorrect answer.