Nutrition

• Nutrition


  The organic process of nourishing or being nourished; the processes by which an organism assimilates (digests) food and uses it for growth and maintenance
• Nutrition (in the broadest sense)

  A process or series of processes by which the living organism as a whole (or its component parts or organs) is maintained in its normal condition of life and growth
• Nutrition (in a more limited sense)

  The process by which the living tissues take up, from the blood, matters necessary either for their repair or for the performance of their healthy functions
• Nutrition is the science that deals with all the various factors of which food is composed and the way in which proper nourishment is brought about
• The average nutritional requirements of groups of people are fixed and depend on such measurable characteristics such as age, sex, height, weight, degree of activity and rate of growth
• Nutrition


  The organic process of nourishing or being nourished; the processes by which an organism assimilates (digests) food and uses it for growth and maintenance
• Nutrition


  The organic process of nourishing or being nourished; the processes by which an organism assimilates (digests) food and uses it for growth and maintenance
• Nutrition (in the broadest sense)

  A process or series of processes by which the living organism as a whole (or its component parts or organs) is maintained in its normal condition of life and growth
• Enzymes are proteins that catalyze biochemical reactions without being consumed or altered during the reaction.
• Digestion involves mechanical breakdown (chewing, mixing with saliva) and chemical breakdown (enzymes).
• The main function of the digestive system is to break down food into smaller molecules that can be absorbed by the body.
• Elimination includes excretion of waste materials from the body.
• Protein metabolism involves the synthesis, degradation, and recycling of amino acids in the body.
• Assimilation refers to the absorption and utilization of absorbed substances within cells.
• Lipid metabolism includes the digestion, absorption, transport, storage, and utilization of lipids in the body.
• Absorption occurs through the walls of the small intestine and involves passive diffusion, facilitated diffusion, active transport, and osmosis.
• Absorption occurs when digested products pass through cell membranes into blood vessels.
• Carbohydrate metabolism involves the breakdown of carbohydrates into simpler molecules to release energy for cellular activities.
• Absorption occurs when nutrients pass through the walls of the small intestine and enter the bloodstream.
• The process of protein metabolism begins with the ingestion of dietary proteins, which are broken down by hydrolysis into amino acids during digestion.
• Protein metabolism is involved in the synthesis and degradation of proteins, including enzymes, hormones, antibodies, and structural components like collagen and keratin.