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Functions of Proteins

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Questions and Answers

What percentage of the dry mass of most cells is accounted for by proteins?

Exactly 40%
Less than 20%
About 30%
More than 50% (correct)

What is the primary function of enzymatic proteins?

To facilitate cellular communications
To store amino acids
To provide structural support
To accelerate chemical reactions (correct)

What is the role of antibodies?

To inactivate and destroy viruses and bacteria (correct)
To transport oxygen in the blood
To regulate blood sugar concentration
To catalyze chemical reactions

What is the function of casein in milk?

To store amino acids (A) Signup and view all the answers

What is the primary function of hemoglobin?

To transport oxygen in the blood (B) Signup and view all the answers

What is the function of receptor proteins?

To respond to chemical stimuli (A) Signup and view all the answers

What is the role of insulin?

To regulate blood sugar concentration (A) Signup and view all the answers

What is a common function of proteins?

To provide structural support and facilitate cellular communications (C) Signup and view all the answers

What is the function of ovalbumin?

To store amino acids (D) Signup and view all the answers

What is a function of proteins in plant seeds?

To store amino acids (A) Signup and view all the answers

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