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Read the first paragraph and fill in the blanks below:
up a chemical (metabolic) reaction. The catalyst
ier is not used up as a result of its actions Proteins that function as biological catalysts are called
They are composed of NO and N. Sulphur (s) may also be present
As we saw in the nutrition and food webpage the function of proteins is determined by their
composition as well as their shape.
Enzymes control cellular reactions. As you remember, reactions that break down substances and release
energy are called catabolic reactions. Examples are
The other
types of reactions are called anabolic reactions. These reactions consume
energy
These reactions build larger, more complex, molecules from smaller ones.
growth from amino acids are examples of anabolic reactions
and
and