Who am I
My oh My
Let me Breath
Globins
Who am I again?
100
This atom coordinates to iron in a heme group
What is Nitrogen
100
The number of subunits in myoglobin
What is one?
100
Hemoglobin has four of these
What are subunits?
100
Oxygen binding proteins
What is Hemoglobin and Myoglobin
100
I only release oxygen when I exercise
Who is myoglobin
200
What is the type of porphyrin found in a Hb or Mb protein
200
single polypeptide with 153 amino acids
What Myoglobin
200
These are part of the secondary structure of proteins, and in hemoglobin are stabilized by hydrogen bonds
What are alpha helices
200
The cylinder shape represent this type of secondary structure
What is the alpha helix
200
When Oxygen binds to me, I make it easier for more oxygen to bind
Who is hemoglobin
300
Ii am tilted at an 60 degree angle
What is Oxygen
300
The organs help to remove myoglobin from the blood, but can be damaged if levels are too high
What are kidneys?
300
apha2 beta2 tetramer
What Is hemoglobin
300
His F8
What is the 8th histidine located on helix F that binds the heme group
300
I am a contact that does not shift during confirmation changes
What is packing Contact
400
Four of these molecules make up a heme with a central Iron 
What is pyrrole
400
This happens to the binding affinity of Mb for O2 when the pH is lowered (becomes more acidic)
What is nothing?
400
These are the two states that determine hemoglobin's affinity for O2 binding.
What are the T and R states
400
When oxygen is bound, I am pulled down
What is iron (Ferrous iron)
400
I am a contact that slide with conformational changes
What is sliding contacts
500
Stores Oxygen
Myoglobin
500
Myoglobin is often found in this part of the body- storing oxygen for later use.
What are muscles cells
500
This is when the binding of one oxygen site influences the binding at another or the overall shape of the protein. This term is used in other proteins as well.
What is an allosteric protein/ cooperative binding?
500
I only interact with alpha subunits
What is the beta subunit.
500
What is it called when one oxygen binding makes it easier for other oxygens to bind to hemoglobin
What is cooperatively