"Describe the importance of major nutrients, vitamins, and minerals in maintaining health and promoting growth, and explain the need for a constant input of energy for living organisms."
Food provides fuel and building material.
all organisms release energy from food to carry out life functions.
Food contains nutrients, vitamins, cardohydrates, fats, proteins, minerals and water.
All of the above are necessary for survival of the organism.
Metabolism is the total of all chemical reactions.
Your metabolism can be affected by your hormones, exercise, diet and aging.
Food energy is measured in calories.
Each organism requires a different amount of calories.
In order to maintain homeostasis all oeganisms need a minimum daily requirement of calories
A change in caloric intake can cause weight loss/gain or disease.
Infectious didease, behavior and use of toxic substances can cause a change in homeostasis.
During pregnancy these changes can affect the development of the child.
Some of these changes can affect your body immediately or may take years to develop.
