Lecture 7 Flashcards
What are the main processes energy is needed for
Mechanical work
Making new materials- growth and replacement
Transport- molecules across the membrane
maintain order
What are the mitochondria
An organelle that is the site of cellular respiration to generate energy (ATP) for cell processes.
they contain mitochondrial DNA and ribosomes
What is the Structure of the mitochondria
inner and outer membrane
matrix inside inner membrane and is highly folded (cristae)
has intermembrane space
What is the equation for cellular respiration
C6H12O6 + 6O2 = 6CO2 + 6H2O + energy (ATP)
glucose and oxygen make carbon dioxide, Water and release energy
What is glycolysis
Where sugar-glucose in converted into smaller molecule pyruvate
Where does glycolysis occur
in the cytosol
What does glycolysis generate
2ATP and electrons transferred into high energy electron carrier
-NAP+ making NADH
What are Pyruvate Oxidation and the Citric acid cycle
Pyruvate converted into Acetyl CoA
Acetyl CoA enters citric acid cycle
Where do Pyruvate Oxidation and the Citric acid cycle occur
In the mitochondrial matrix
What are the outputs of Pyruvate Oxidation and the Citric acid cycle
energy carrier ATP and high energy electron carriers NADH and FADH2
What is glucose broken down into
ATP, NADH and FADH2
What are the two parts of Oxidation Phosphorylation
Electron transport chain and chemiosmosis
Where to the stages of Oxidation Phosphorylation occur
in the inner membrane of the mitochondrion
What happens at the beginning of the Electron Transport chain
NADH and FADH2 shuttle high energy electrons to the inner membrane, as electrons move through the protein complexes into the membrane Protons (H+) are pumped across
What does the Electron Transport chain create
a proton gradient
Proteins accumulate in intermembrane space t form gradient that is important for chemiosmosis
