Proteins
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Transcript of Proteins
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Proteins
Derived from the Greek word protos that means I occupy
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Importanance
• Take an essential part in the formation Of protoplasm.
• Nucleoproteins which are complexes of
• Proteins with nucleic acid serve as carriers of heredity.
• Enzymes are protein
• Proteins are an integral part of all viruses
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• One gram of protein furnishes 4.1 kilocalories
• Have specialized functions e.g. hemoglobin, hormone
• Present in blood plasma as colloidal particle
• Plasma protein take part in blood coagulation
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• Antibodies are proteins
• Act as transporting or carrier molecule
• Make complexes with carbohydrates and Lipids.
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Classification
• Physico-chemical classification
• Functional classification
• Structural classification
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Physico-chemical classification
• Simple proteins
• Compound proteins
• Derived proteins
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Simple proteins
• Albumin
• Globulin
• Globin
• Prolamin
• Histones
• Protamin
• Albuminoids: keratin ,collagen ,elastin