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Questions and Answers
What is the origin of the name 'protein'?
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?
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?
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?
What are bifunctional compounds with an acidic carboxylic group and a basic amino group known as?
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How many standard amino acids are commonly found in proteins?
How many standard amino acids are commonly found in proteins?
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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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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.
