Proteins
Chapter Name : Biomolecules |
Sub Topic Code : 102_12_14_02_01 |
Topic Name : Proteins |
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Sub Topic Name : Amino Acids |
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Introduction
1.Proteins are the most abundant bio-molecules of the living system. 2.They occur in every part of the body and form the fundamental basis of structure and functions of life. 3.They are also required for growth and maintenance of body. 4.All proteins are polymers of ?-amino acids. 5. Amino acids contain amino (–NH2) and carboxyl (–COOH) functional groups. 4.Depending upon the relative position of amino group with respect to carboxyl group, the amino acids can be classified as ?, ?, ?, ? and so on. 7.Only ?-amino acids are obtained on hydrolysis of proteins. 8.They may contain other functional groups also. 9.All ?-amino acids have names which reflect the property of that compound or its source. 10. Glycine is so named since it has sweet taste (in Greek glykos means sweet) and tyrosine was first obtained from cheese (in Greek, tyros means cheese.) 11. Amino acids are generally represented by a three letter symbol, sometimes one letter symbol is also used. 12.There are twenty natural amino acids
Pre-Requisites:
Elements
Activity:
Chief sources of proteins are milk, cheese, pulses, peanuts, fish, meat, etc
Real Life Question:
Which foods contain protein?
Key Words / FlashCards
| Key Words | Definitions (pref. in our own words) |
|---|---|
| Protein | Made up of amino acids |
Learning aids / Gadgets
| Gadgets | How it can be used |
|---|---|
| Chief sources of proteins are milk, cheese, pulses, peanuts, fish, meat, etc |
Real life uses :
Proteins make up the enzymes within the body
Places to visit :
kitchen
Practical examples around us
| Examples | Explainations |
|---|---|
| Milk, lentils, fish, meat | Contain proteins |
What you learn in Theory:
1.Proteins are the most abundant bio-molecules of the living system. 2.They occur in every part of the body and form the fundamental basis of structure and functions of life. 3.They are also required for growth and maintenance of body. 4.All proteins are polymers of ?-amino acids. 5. Amino acids contain amino (–NH2) and carboxyl (–COOH) functional groups. 4.Depending upon the relative position of amino group with respect to carboxyl group, the amino acids can be classified as ?, ?, ?, ? and so on. 7.Only ?-amino acids are obtained on hydrolysis of proteins. 8.They may contain other functional groups also. 9.All ?-amino acids have names which reflect the property of that compound or its source. 10. Glycine is so named since it has sweet taste (in Greek glykos means sweet) and tyrosine was first obtained from cheese (in Greek, tyros means cheese.) 11. Amino acids are generally represented by a three letter symbol, sometimes one letter symbol is also used. 12.There are twenty natural amino acids
What you learn in Practice:
1.Proteins are essential for the body 2.Only 20 proteins are natural