Role of outside raw materials in an organism

Organisms require a variety of raw materials from their environment to carry out various metabolic processes and maintain homeostasis. These raw materials include:

1. Water
Water is the most essential raw material required by organisms. It is necessary for various metabolic processes, including digestion, respiration, and excretion. Water also helps in regulating body temperature and maintaining the body's fluid balance.

2. Oxygen
Oxygen is essential for respiration, the process by which energy is released from food molecules. Organisms use oxygen to break down glucose and release energy in the form of ATP. Without oxygen, organisms cannot carry out aerobic respiration and must rely on anaerobic processes, which are less efficient.

3. Nutrients
Nutrients are substances required by organisms for growth, repair, and maintenance. These include carbohydrates, proteins, fats, vitamins, and minerals. Organisms obtain nutrients from the food they eat.

4. Sunlight
Sunlight is essential for photosynthesis, the process by which green plants and algae convert sunlight into chemical energy in the form of glucose. This process is the basis of the food chain, as other organisms rely on plants and algae for their energy needs.

5. Carbon dioxide
Carbon dioxide is required for photosynthesis, as it is one of the raw materials used by plants and algae to produce glucose. It is also a waste product of respiration and must be excreted by organisms.

In conclusion, outside raw materials are essential for the survival and growth of organisms. Without these raw materials, organisms cannot carry out essential metabolic processes and maintain homeostasis.