levels of protein structure
This level of structure is the linear sequence of amino acids.
Primary structure
These proteins fight off viruses and bacteria and help protect the body.
Antibodies
This bond links amino acids in a protein chain.
Peptide bond
What are amino acids?
Building blocks of protein
What is the most common bond in secondary structure?
These two common shapes form part of the secondary structure.
alpha helices and beat pleated sheets
These proteins speed up chemical reactions in the body.
Enzymes
What are multiple chains of amino acids called?
Polypeptide chains
What is the biggest difference between secondary structure and quaternary structure?
Quaternary structure contains 2 or more polypeptide chains
What is protein folding?
When proteins mold into their 3D shape
This level of protein structure refers to the 3D folding of a single polypeptide chain
Secondary, tertiary, quaternary
These proteins act as chemical messengers in the body.
Messengers/hormones
How many amino acids need to be consumed?
11
When do beta pleated sheets form?
When polypeptide chains line up next to each other, causing various bonds to form
What covalent bond is formed within proteins?
Peptide bond
Multiple polypeptides assembling together to form this structure.
Quaternary structure
This protein provides support to cells, tissues, and organs.
Structural
How many essential amino acids are present in our body?
9
What two molecular shapes are formed due to tertiary structure?
fibrous and globular
Why are proteins important?
They are needed for our body to function properly as they make up a large portion of it - skin, muscles, bones, etc
Name 2 bonds that stabilize tertiary structures.
Disulphide bonds, hydrogen bonds, london dispersion forces
What protein carries oxygen in red blood cells?
Hemoglobin
This group in an amino acid determines its difference from other amino acids.
R group/side chain
What myth was associated with proteins?
Genetic material was found in proteins
What type of bond in proteins helps maintain stability in tertiary structures only?
Disulphide linkages