Unit 1.7 Cellular Respiration Flashcards
What is cellular respiration
A series of metabolic pathways which releases energy from food molecules & makes it available to the cell in the form of ATP
Where does cellular respiration occur
In all living organisms
What does ATP stand for
Adenosine Triphosphate
What is ATP
An energy rich molecule that can be broken down to release & provide energy for cellular processes
What is a molecule of ATP made up of
Adenosine joined to 3 inorganic phosphates (Pi)
What bond in ATP needs to break for energy to be released, and what breaks this down
The high energy bond which holds the third phosphate group to the rest of the molecule- broken down by enzyme action
What is formed when ATP is broken down
ADP
What does ADP stand for
Adenosine Diphosphate
What is ADP made up of
Adenosine & 2 inorganic phosphate groups + a free inorganic phosphate group
What is the addition of a phosphate group called
Phosphorylation
What is phosphorylation
The addition of a phosphate group
What does the energy released during cellular respiration do
The energy is used to synthesise ATP from ADP & an inorganic phosphate group
What is made continuously during the process of cellular respiration
ATP
3 stages of cellular respiration
1- Glycolysis
2- The Citric Acid Cycle
3- The Electron Transport Chain
Where does glycolysis occur
The cytoplasm
