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Quaternary Structure in Proteins

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Questions and Answers

Which elements are present in a protein molecule?

Carbon, oxygen, nitrogen, phosphorus, and sulfur

Carbon, hydrogen, nitrogen, oxygen, and sulfur (correct)

Carbon, hydrogen, nitrogen, oxygen, and phosphorus

Carbon, oxygen, nitrogen, hydrogen, and sulfur

What are the building blocks of protein?

Amino acids (correct)

Monosaccharides

Nucleotides

Fatty acids

What is the primary structure of a protein?

The side chain groups of the amino acids

The three-dimensional shape of the protein

The specific number and order of amino acids in the protein chain (correct)

The functional role of the protein

Which type of protein structure is the most common and has a three-dimensional shape that is globular in nature?

Tertiary structure Signup and view all the answers

What is the role of fibrous proteins in the cell?

They provide structural support Signup and view all the answers

What is the chemical makeup of amino acids that allows proteins to be considered organic molecules?

They contain the element carbon Signup and view all the answers

Which type of structure is determined by the hydrogen bonding pattern of hydrogens in the amine and carboxyl groups?

Secondary structure Signup and view all the answers

What is the primary function of chaperone proteins in protein folding?

To assist the polypeptide chain in folding correctly Signup and view all the answers

What happens to a protein when it undergoes denaturation?

It loses its tertiary structure Signup and view all the answers

Which protein molecule acts as a transcription factor?

Estrogen receptor Signup and view all the answers

Which protein molecule helps link neighboring cells together and promotes tissue structure?

Cadherin Signup and view all the answers

Which protein molecule transports oxygen in red blood cells?

Hemoglobin Signup and view all the answers

Which protein molecule protects the cell against DNA damage?

p53 Signup and view all the answers

Which protein molecule helps organize DNA?

Histones Signup and view all the answers

Which protein molecule allows for repeated muscle contraction and relaxation?

Acetylcholinesterase Signup and view all the answers