Flashcards in Membrane Bound Proteins Examples Deck (16):
Where is insulin released and when?
-Released by the pancreas when blood sugar levels are high
What does insulin bind to
-Insulin binds to insulin receptor protein, causing the cell to open the typically closed glucose transport protein
-This allows glucose to enter the cell from the blood
What happens after insulin binds to the insulin receptor protein
1) Insulin binds to insulin receptor Protein
2) Reaction happens inside (Causes change)
3) Glucose transport protein opens
What is ATP synthase
important enzyme that provides energy for the cell by synthesizing ATP
How does an enzyme protein work
Works by adding phosphate into ADP to create ATP
Where are enzyme proteins located?
Membrane of chloroplasts and mitochondria.
(Used in both photosynthesis and respiration, and the cell membranes of some prokaryotes)
Why does Hydrogen go downwards during ATP Synthase?
It is attracted to low concentration
Energy in ATP vs ADP
ATP had more energy
How does ATP Synthase work
1) Hydrogen travels down (Until equillibrium)
2) SPins the channel creating energy
3) Energy combines ADP and Pi
4) ATP is formed
Adhesion Proteins connect...
cells to create tissue
-Adhesion protein example
-type of transmembrane protein
-In the presence of calcium, binds cells within tissues together
MHC Proteins are found...
on surface of cells that belong to a particular individual
-Recognition Protein Example
-They interact with the immune system to identify which cells belong to the body and which cells are foreign
Pump Proteins work with
-ATP synthase Makes ATP
-Pump Protein pumps the H+ back up using ATP
-Pump Protein example
-Na and K move against their concentration gradients (from low to high)
-Required energy in the form of ATP