CELLULAR RESPIRATION Flashcards
Name the three stages of respiration.
Glycolysis
Citric acid cycle
Electron transport chain
Name the two phases of glycolysis.
Energy investment and the energy payoff phase
Where in the cell does glycolysis take place?
Cytoplasm
Name three processes in the body that require ATP.
Muscle contractions, nerve impulses and protein synthesis.
What name is to the series of metabolic pathways that bring about the release of energy from a foodstuff and the regeneration of ATP?
Respiration
A molecule of ATP is composed of what two components?
Adenosine and three molecules of inorganic phosphates.
What is formed when ATP is broken down?
ADP and Pi
What is released during the breaking of the terminal bond in ATP?
Energy
What name is given to the process by which phosphate is added to ADP?
Phosphorylation
How many ATPs need to be invested in the energy investment phase of glycolysis?
2ATPs
How many ATPs are made during the energy payoff phase to give a net gain of 2ATPs?
4ATPs
What enzymes remove hydrogen ions and electrons from glucose?
Dehydrogenase enzymes
Name the coenzyme molecule that acts as a carrier of the hydrogen ions and electrons?
NAD
What does NAD become when H+ ions and electrons are picked up?
NADH
Where are all the H+ ions and electrons taken to by the NADH?
The electron transport chain
