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Questions and Answers
What is the origin of the word 'protein'?
What is the origin of the word 'protein'?
- Greek word 'proteios', meaning 'first rank of importance' (correct)
- Sanskrit word 'prota', meaning 'essential'
- Latin word 'proteus', meaning 'versatile'
- Arabic word 'proteina', meaning 'nutritious'
What gives proteins the ability to bear positive and negative charges?
What gives proteins the ability to bear positive and negative charges?
- Presence of sulfur
- Acid and basic amino acid compositions (correct)
- Carboxyl and amino groups
- Hydrogen bonding
What percentage of total body weight do proteins provide?
What percentage of total body weight do proteins provide?
- 25 to 30%
- 30 to 40%
- 5 to 10%
- 12 to 20% (correct)
What elements are usually found in proteins?
What elements are usually found in proteins?
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What is the characteristic element found in proteins?
What is the characteristic element found in proteins?
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