3.3- Molecules Flashcards
How would the structure and function of a protein change if a hydrophobic amino acid was substituted for a hydrophilic one?
The strand would have to fold in a different way because hydrophobic molecules water hides in the middle, but hydrophilic molecules attract to water on the outside of the strand
What is the first level of protein structure?
Primary Structure
What bonds are in primary structures?
Covalent Bonds
What is the second level of protein structure?
Secondary Structure
What bonds are in secondary structure?
Hydrogen Bonds
What is the third level of protein structure?
Tertiary Structure
What bonds are in tertiary structure?
Ionic, Covalent, or Hydrogen Bonds
What is the fourth level of protein structure?
Quaternary Structure
What bonds are in Quaternary structure?
Mostly Hydrogen Bonds and Hydrophobic interactions
What is denaturation?
The unfolding of proteins
-it disrupts bonds
-doesn’t affect primary structure
What are some functions of proteins?
-Storage-Movement-Transport-Identification-Defense-Chemical Reactions-Structure-Communication-
How many types of amino acids are there?
20 different types
What is special about the Quaternary Structure?
It is the only level that consists of multiple polypeptide chains bonded together
What does collagen make up?
Skin & Tendons
What could cause denaturation?
-Temperature Change-Salinity Change-pH Change-
