THIS WORD REFERS TO ALL THE CHEMICAL ACTIVITIES THAT SUPPORT LIFE IN A CELL, AN ORGAN — AND ALL LIVING THINGS.
The body is a complex, interacting, transforming and very busy place! Metabolism isn’t just for warm-blooded animals like us. Every living organism has metabolism or biochemical processes. Living things must use energy and consume nutrients to carry out the chemical reactions that sustain life. Metabolism is what allows living things to grow, reproduce, move and more. It refers to all the chemical processes going on continuously inside your body that allow life and normal functioning (maintaining normal functioning in the body is called homeostasis). These processes include those that break down nutrients from our food, and those that build and repair our body. Building and repairing the body requires energy that ultimately comes from your food.
Cells are always undergoing metabolism — taking food and turning it into energy, building up new cell parts and breaking them down again. Two main categories of metabolism are: Catabolism, which is the breakdown of molecules to obtain energy and Anabolism, which can be termed as the synthesis of all compounds needed by the cells. Metabolism involves the formation of various types of molecules and many molecules also get broken down.
One of the most defining features of all the living organisms is Metabolism. It is the sum total of all of the chemical reactions which take place in a living cell or organism. Metabolism is exhibited by all organisms which include protozoans, algae, fungi and bacteria. The rate of energy production is called the basal metabolic rate and is affected by factors such as sex, race, exercise, diet, age, and diseases such as sepsis or cancer. A person’s metabolism also goes up and down throughout the day, burning different energy sources at different times. U.S. National Cancer Institute
We are all Interconnected even with the Universe 
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