Bioprocess Quiz 5

What does the word "proteios", from which "protein" is derived, mean?

• Amino

• Essential

• Primary

• Building block

Which statement best describes the primary structure of a protein?

• The overall 3D shape of a protein.

• Sequence of amino acids in a polypeptide chain.

• Several protein chains working together.

• Regular repeating structures like alpha-helices.

Which protein structure level involves multiple polypeptide chains?

• Primary

• Secondary

• Tertiary

• Quaternary

Which of the following is NOT a dynamic function of proteins?

• Building blocks of the body

• Digesting food

• Sending cellular signals

• Fighting invaders

What happens to proteins during denaturation?

• They gain function.

• They duplicate.

• They lose their tertiary and secondary structures.

• They bind to DNA.

What type of bond primarily holds amino acids together in the primary structure?

• Hydrogen bond

• Ionic bond

• Disulfide bridge

• Peptide bond

What is the role of proteins that exhibit a static or structural function?

• Digesting food

• Sending signals

• Providing mechanical strength and support

• Acting as enzymes

Which amino acid sequence would be considered a primary structure?

• Alpha-helix

• Beta-sheet

• Alanine-Glycine-Threonine

• Tangled protein complexes

Which of the following properties describes the ampholytic nature of amino acids?

• Ability to act as both acid and base.

• Ability to form peptide bonds.

• Being soluble in water.

• Having a high melting point.