Cellular Respiration Flashcards
What are the parts of the Mitochondria?
Outer Membrane
Inner Membrane
Intermembrane Space
Crista
Matrix
What are the functions of the mitochondria?
- Synthesis of numerous substances (some amino acids and heme groups)
- Uptake and release of calcium ions
- Regulation of Ca^2+
- Cell Death
Function of the Outer Membrane
Function of the Inner Membrane
Function of the Intermembrane Space
Function of the Crista
Function of the Matrix
What is the permeability of the outer membrane?
More permeable
What is the permeability of the inner membrane?
Not permeable
Why is the inner membrane not permeable?
It does not want other things messing with the Kreb’s Cycle or ETC
What are the types of Electron Carriers?
- Flavoproteins
- Cytochromes (3 types)
- Copper Atoms
- Ubiquinone
- Iron-sulfur Proteins
Where does the Kreb’s Cycle take place?
In the matrix
Where does the ETC take place?
In the inner membrane
What are the reactants of ETC
NADH –> NAD
FADH2 –> FAD
What are the products of ETC?
Hydrogen Ions
ATP
What are porins?
Lets things in for cellular respiration
i.e. O2, H2O, pyruvate
Identify the 4 complexes on the ETC
NADH dehydrogenase
Cytochrome b-c1
Cytochrome oxidase complex
Succinate dehydrogenase
Role of Complex I: NADH Dehydrogenase
-Takes out the hydrogren [H^+] out in the intermediate before it
-Transfers a Hydride ion from NADH to ubiquinone and pumps 4 protons across the inner mitochondrial membrane
Role of Complex II: Succinate Dehydrogenase
