Flashcards in Respiration Deck (17):
What is the energy in glucose used to regenerate
What can ATP be used for?
To transfer chemical energy to cellular processes
What is ATP generated from
ADP and Pi
Where does respiration occur
The cytoplasm and mitochondria
What are the three stages of respiration?
Stage 1- glycolysis
Stage 2 - the kerbs cycle
Stage 3 - the cytochrome system
Where does glycolysis happen
In the cytoplasm
What does glycolysis not require
What happens in glycolysis
6-carbon sugar glucose to two molecules of 3-carbon pyruvic acid
Haw many ATP are gained
What does glycolysis release
What is the hydrogen carried away by
NAD as NADH
Where does the kerbs cycle happen
In the matrix of the mitochondria
What does the kerbs cycle require
Oxygen, it's aerobic
What happens in the kerbs cycle
2C acetyl group derived from pyruvic acid produced in glycolysis
The acetyl group joins with CoA acetyl-CoA
Acetyl-CoA reacts with a 4C compound to form a 6C compound citric acid
The citric acid is gradually converted back to the 4C compound. It's carbons are lost in carbon dioxide
Where does the cytochrome system occur?
The cristae of the mitochondria
What happens in the cytochrome system?
Hydrogen is passed through a series of carriers and finally combined with oxygen to form water.
Oxygen is the final hydrogen acceptor