Transport of materials is necessary in both plants and animals as every cell needs a regular supply of nutrition and oxygen for releasing energy through respiration. the food that we inhale is also transported to the cell of the body .our body also require constant removal of waste from the body.

Introduction:
Transport of materials is necessary in both plants and animals to ensure the proper functioning and survival of the organisms. This process allows for the movement of essential substances, such as nutrients, gases, and waste products, to different parts of the organism's body. Let's explore the reasons why transport of materials is necessary in plants and animals in detail.

Transport in Plants:
1. Absorption of water and nutrients:
Plants absorb water and nutrients from the soil through their roots. These substances need to be transported to the leaves, where photosynthesis occurs, and to other parts of the plant for growth and development.

2. Translocation of sugars:
During photosynthesis, plants produce sugars in the leaves. These sugars are transported to other parts of the plant, such as the stem and roots, to provide energy for various metabolic processes.

3. Transport of gases:
Plants require carbon dioxide for photosynthesis, which is absorbed through small pores called stomata in the leaves. Oxygen, a byproduct of photosynthesis, needs to be transported out of the plant. The transport system in plants allows for the exchange of gases between the plant and the environment.

4. Distribution of hormones:
Hormones play a crucial role in plant growth, development, and responses to stimuli. The transport system in plants ensures the distribution of hormones to different parts of the plant, regulating various physiological processes.

Transport in Animals:
1. Circulation of blood:
In animals, the circulatory system transports oxygen, nutrients, hormones, and waste products throughout the body. The heart pumps blood, which carries these substances, through blood vessels to different organs and tissues.

2. Exchange of gases:
Animals require oxygen for cellular respiration, which occurs in the mitochondria of cells. The respiratory system allows for the exchange of oxygen and carbon dioxide between the body and the environment.

3. Distribution of nutrients:
After digestion, nutrients from the food are absorbed into the bloodstream and transported to various cells and tissues in the body. This ensures that all cells receive the necessary nutrients for growth, repair, and energy production.

4. Removal of waste products:
Transport systems in animals help eliminate waste products, such as carbon dioxide and nitrogenous wastes, from the body. These waste products are transported to excretory organs, such as the lungs and kidneys, for elimination.

Conclusion:
Transport of materials is essential in both plants and animals to maintain their physiological processes, growth, and survival. Whether it is the movement of water and nutrients in plants or the circulation of blood and exchange of gases in animals, these transport systems ensure the proper functioning of the organisms.