proteins from animal origin are called first class proteins. meat and fish are first class proteins because they contain all the essential amino acids (which cannot be made by the body), plant proteins are called second class proteins.
what the different of first and second class protein?
First Class protein or complete proteins are those which have all the essential amino acids. They are usually animal proteins, though soya beans are also complete.
Amino acids make up protein and fat serves as our "second storage unit" for energy (the first being glycogen, made from glucose).
Last I heard, there were 27 identified complete Amino Acids which are essentially protein. Foods with complete Amino Acids are called First Class proteins, and they are the only foods that can build new tissue. They mostly come from animal products.Second Class protein helps to repair body tissue, and they are mostly vegetable in origin. Vegetarians combine different types of incomplete or second class proteins to make sure there are the right sort of Amino Acids to join up to do the job of first class proteins, ie to build new tissues.
First you must remember the first rule.which is pay attention in class then the second rule dont ask or you'll look stupid
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first class lever second class lever third class lever
only three first class second class third class
The passengers on the Titanic were separated into different classes; first class, second class and third class. &:-)
Always
The Order of Merlin is an award bestowed upon wizards and witches who have achieved great deeds. It has three different levels: First Class, Second Class, and Third Class.
In a first class lever the fulcrum is at the middle. load and effort are applied at two ends. eg scissors. In second class lever fulcrum is at one end and effort is at other end. The load is at the middle. eg nutcracker.
The second class passengers room were almost as fancy as the first class.
what is the difference between first and second class proteins
She was in first class.
Not sure exactly what you mean, there are hundreds of different proteins, but in nutrition you have: first class proteins: proteins that contain the eight essential amino acids that cannot be produced in the human body and so must be eaten, they are usually found in meat. second class protein: proteins that are made up of non- essential amino acids, those that can be produced in the body.
* * * yes it is a second class...
Opening a tin of paint with a spoon is an example of a simple machine called a first class lever. There are three different types of levers, which are first class, second class, and third class levers.