Mechanism /Energy Flashcards
What is Cellular respiration ?
Cellular Respiration is a metabolic pathway that breaks down glucose and extracts the energy to produce energy
Most efficient route for generation of ATP
Where does the Krebs cycle occur ?
Mitochondria
No not all living organism go through the kerb cycle only those in eukaryotes.
What is oxidative phosphorylation ?
Process in which ATP is formed as a result of the transfer of electrons from NADH or FADH2 to 02 by electrons carriers process takes place in the mitochondria .
What are the two types of Pathways ?
Catabolic and anabolic pathways constitute the metabolism of a cell. •
Difference between anabolic and catabolic pathways ?
Anabolic pathways synthesize molecules and require energy.
Catabolic pathways break down molecules and produce energy.
Metabolic Pathways
A metabolic pathway is a series of connected chemical reactions that feed one another. The pathway takes in one or more starting molecules and, through a series of intermediates, converts them into products.
Anabolic Pathways
Anabolic pathways build complex molecules from simpler ones and typically need an input of energy.
Catabolic Pathways ? What would they involve ?
Catabolic pathways involve the breakdown of complex molecules into simpler ones and typically release energy.
Energy stored in the bonds of complex molecules, such as glucose and fats, is released in catabolic pathways.
It’s then harvested in forms that can power the work of the cell (for instance, through the synthesis of ATP).
What is the second law of thermodynamic ?
Another way to express second law thermodynamics , is systems will change spontaneously towards arrangements with greater entropy .
Entropy (disorder) in an isolated system will rise à An isolated system will always disintegrate over time as during energy conversion, some of the input is inevitably lost as heat
