Bosh miyaning tuzilishi

below). Eventually they reach the cells of the body, where they are

broken down oxidatively in the mitochondria to energy-poor combinations

(CO2 and H2O) (biological oxidation). The energy thus liberated

is stored in energy-rich ATP following a chain reaction (mitochondrial

respiratory chain). ATP in its turn is made available to processes requiring

energy (e. g., protein synthesis or muscular work). ATP splits

off phosphate molecules to liberate energy (see Chapter 1: Mitochondria).

_ Metabolism, Energy Requirements and Nutrients

Metabolism

Metabolism, which includes all the biochemical processes needed to

maintain life by building, transforming, and breaking down the organism,

can be divided into constructive (productive, anabolic) and