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Proteins: Characteristics and Functions

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Questions and Answers

What is the role of proteins in the immune system?

To recognize and neutralize pathogens (correct)
To synthesize cholesterol
To produce hormones that regulate metabolism
To regulate body temperature

What is the function of muscle proteins like actin and myosin?

To enable muscle contraction and movement (correct)
To regulate gene expression
To direct protein synthesis
To synthesize non-essential amino acids

What is the source of essential amino acids in the human body?

They are obtained from the diet through protein-rich foods (correct)
They are produced by gene expression
They are synthesized by messenger RNA
The body synthesizes them internally

What is the purpose of adequate protein intake?

To maintain muscle mass and support immune function (D) Signup and view all the answers

What is the role of proteins in gene expression?

To regulate gene expression by interacting with DNA (B) Signup and view all the answers

What is the primary function of collagen and elastin in the body?

To provide structural support (A) Signup and view all the answers

What type of molecules do proteins act as carriers for?

Oxygen, nutrients, hormones, and waste products (C) Signup and view all the answers

What is the role of enzymes in the body?

To act as biological catalysts accelerating chemical reactions (A) Signup and view all the answers

What is the general term for proteins that regulate various physiological processes?

Protein hormones (A) Signup and view all the answers

What is the building block of proteins?

Amino acids (D) Signup and view all the answers