A human being is not maintained by his food intake, but rather, by what is digested.
The human body needs fuel to live. We eat food for fuel. But just getting the food into the body is only a small part of the process. The food must be broken down into chemicals that the body can use. This whole process is called digestion
The gall bladder is like a sack under the liver, and it stores bile, which is essential for digestion.
Gametogenesis is essential to humans who want to reproduce. Gametogenesis, however, is not an essential life function.
Reproduction, and Growth & Development
dont eat for a month and you'll have your answer :P no dont do that :P eating provides the body with essential elements it needs to function. It provides nutrients to create proteins which are the building blocks of biological life. without digestion, the food you eat would just come out the other end unscathed.
the digestion of food is necessary for us to get energy
secretion of intrinsic factor
The primary function of the liver in the human body is to process nutrients from food, detoxify harmful substances, produce bile for digestion, and store essential vitamins and minerals.
Bile Salts.
A body function is referred to as a physiological process or function. It encompasses all the activities that occur within the body to maintain homeostasis and support life, such as digestion, respiration, and circulation.
Yes all the living organism including human make proteins. Proteins are essential part of life as they function structurally and as functional proteins such as enzymes. We receive proteins from our food that would be converted to amino acids during digestion.
Digestion
To chew the food.