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Protein Power

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Questions and Answers

Who coined the term 'protein' in 1838?

Swedish chemist Jöns Jacob Berzelius (correct)

German chemist Justus von Liebig

British chemist John Dalton

Greek chemist Prōteios

What is the meaning of the Greek word 'prōteios' from which 'protein' is derived?

Holding first place (correct)

Complex substance

Great nutritional value

Essential for life

What is a key characteristic of proteins in relation to species?

Proteins are identical across all species

All species share a common protein structure

Proteins are not species-specific

Proteins of one species differ from those of another species (correct)

Within a single organism, do proteins differ based on the organ?

Yes, for instance, muscle proteins differ from those of the brain and liver Signup and view all the answers

What is the role of proteins in living organisms?

Proteins are of great nutritional value and are directly involved in the chemical processes essential for life Signup and view all the answers

What is the nutritional value of proteins?

Proteins are of great nutritional value. Signup and view all the answers

What is the species-specific characteristic of proteins?

Proteins differ between species. Signup and view all the answers

What is the organ-specific characteristic of proteins?

Proteins differ between organs within a single organism. Signup and view all the answers

Who recognized the importance of proteins in the early 19th century?

Chemists, including Jöns Jacob Berzelius, recognized the importance of proteins. Signup and view all the answers

What is the etymology of the term 'protein'?

The term 'protein' is derived from the Greek word 'prōteios', meaning 'holding first place'. Signup and view all the answers