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P R O T E I N S

P R O T E I N S

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Are

Macromolecules of high molecular weight.

Proteins are composed of

Carbon

Oxygen

Hydrogen

Nitrogen

Sulfur

They contain a Chiral Carbon

The alpha carbon contains four different substituents

Group R

H

Carboxyl group

Amino group

They play a major role in the organism

They help us to

Catalyze specific and efficient biological reactions

reactions by enzymes.

Transport and storage of ions and molecules

To give structure to muscles and skin tissue

Defending against infectious agents

Proteins

Carbon

Hydrogen

Oxygen

Nitrogen

Sulfur

Chiral

Group R

Amino group

Carboxyl group

Enzymes

Structure

Immunoglobulins

Immunoglobulins