Protein structure 1 of 2

which of the following terms refers to the order in which amino acids are linked together in a protein.

• Primary

• Secondary

• Tertiary

• Quaternary

The chain of amino acids folds and coils on itself

• Primary

• Secondary

• Tertiary

• Quaternary

The entire polypeptide forms a three-dimensional structure

• Primary

• Secondary

• Tertiary

• Quaternary

Two or more polypeptides attached together and work as one unit

• Primary

• Secondary

• Tertiary

• Quaternary

What is a peptide bond?

• Bond that holds two amino acids together.
• A bond that holds hydrogen and oxygen molecules together.
• A bond that holds the phosphate group of one nucleotide and a sugar of a neighboring nucleotide.
• A bond that is formed by the sharing of electrons.

The name of the initial chain of monomers in a protein is called.....

• polypeptide
• polysaccharide
• polyester
• polynucleotide

The main bonding in the secondary structure of a protein is due to.....

• covalent bonding
• ionic bonding
• hydrogen bonding
• polar bonding

The tertiary structure folding in proteins is primary due to the interactions of....

• the 'R' groups
• the 'P' groups
• the 'A' groups
• the 'S'

Water-repelling

• hydrophobic
• myoglobin
• coagulation
• gluten

Which of the following bond(s) can be found in a tertiary structure?

• hydrogen bond

• disulphide bridge

• hydrophobic interaction

• all of the above