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Amino Acids and Proteins Quiz

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Questions and Answers

What is the origin of the name 'protein'?

It is a combination of 'proto' and 'amine' in reference to its early discovery

It comes from the Latin word 'proteus' meaning 'essential'

It originates from the Sanskrit word 'proteena' meaning 'vital'

It is derived from the Greek word 'proteios' meaning 'first' (correct)

What are proteins chemically classified as?

Monosaccharides and disaccharides

High polymers and polyamides (correct)

Simple sugars and alcohols

Saturated and unsaturated fats

How many different kinds of amino acid units can be found in a single protein molecule?

Less than ten

Hundreds

Fifty or more

Twenty-odd (correct)

What are bifunctional compounds with an acidic carboxylic group and a basic amino group known as?

<p>Amino acids</p> Signup and view all the answers

How many standard amino acids are commonly found in proteins?

<p>20</p> Signup and view all the answers

Study Notes

Protein Origin and Composition

The term "protein" originates from the Greek word "proteios", meaning "of first importance" or "primary".
Proteins are chemically classified as polypeptides or polyamides, composed of amino acid units.
A single protein molecule can be composed of up to 20 different kinds of amino acid units.
Amino acids, the building blocks of proteins, are bifunctional compounds with an acidic carboxylic group and a basic amino group.
There are 20 standard amino acids that are commonly found in proteins.

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Description

Test your knowledge of amino acids and proteins with this quiz. Explore the fundamental building blocks of life and understand their significance in the human body.