An organism needs raw materials from outside like mainly :-


a) Food:- To supply energy, materials like minerals, vitamins etc., for working and maintenance of cells/tissues.


b) Water:-To provide medium in the body to live and carry out all the metabolic reactions necessary for life.


c) Oxygen:-For respiration.

Importance of Outside Raw Materials for Organisms
Organisms require outside raw materials for various essential functions to maintain their survival and growth. These raw materials play a crucial role in their overall well-being and functioning. Let's delve into the details of how organisms utilize outside raw materials:

Nutrition
- Outside raw materials are used by organisms for nutrition. They serve as a source of energy and essential nutrients required for various metabolic processes.
- Organisms obtain raw materials from the environment through processes like photosynthesis, ingestion, and absorption.

Growth and Development
- Raw materials obtained from the environment are crucial for the growth and development of organisms. These materials are utilized in processes such as cell division, tissue repair, and overall growth.
- Essential nutrients like proteins, carbohydrates, fats, vitamins, and minerals obtained from outside sources are utilized for growth and development.

Reproduction
- Outside raw materials are also utilized by organisms for reproduction. These materials play a vital role in the production of reproductive cells and the development of offspring.
- Nutrients obtained from the environment are essential for the successful reproduction of organisms.

Maintenance of Homeostasis
- Organisms require outside raw materials to maintain internal balance and stability, known as homeostasis. These materials help in regulating various physiological processes.
- Raw materials are utilized in processes like respiration, circulation, and waste removal to ensure the proper functioning of the organism.
In conclusion, outside raw materials are essential for organisms to carry out various biological processes such as nutrition, growth, reproduction, and maintenance of homeostasis. These materials are acquired from the environment and play a crucial role in sustaining the life of organisms.