Protein Denaturation bio lab
What is gelatin?
A good ingredients produced by a denaturation protein
Which of these is NOT a food that contains gelatin?
Cookies
What happens when you fry an egg?
Denatured proteins form new interactions
Casein is one of the most abundant proteins in milk. Which one of these compounds should NOT cause its denaturation if we add them to a glass of milk?
Diluted saline solution
How can a highly concentrated slay denature a protein?
Due to the interactions of cations and anions with the salt bridge
What kind of proteins interactions are disrupted by the addition of an alcohol?
Hydrogen bonds
Imagine that we vortex the tubes after adding critic acid to some egg whites. What would happen?
More lumps would have formed in less time
What do you expect would happen to the distilled water?
Nothing, as it doesn't contain protein
What levels of protein structure are affected when adding strong bases to them?
Secondary, tertiary, and quaternary levels
Taking into account what would have learned so far , what would happen if you whisk some eggs whites in a copper bowl instead of a crystal or plastic one?
The copper ions will stabilize already denatured proteins from egg whites
What kind of protein interactions are disrupted by the addition of metals?
The disulfide bonds
What is protein coagulation?
The formation of new interactions among denatured proteins
What happens when proteins in egg white are denatured?
They lose their 3D functional structure
How do acids denature proteins?
They modify the pH, disrupting the salt bridges
Why do salts need to be at high concentrations to affect the protein structure?
To have enough ions to interact with the slat bridges in the proteins
Where is the secondary structure known as the alpha helix within the tertiary structure?
Yellow
