Unit 1(1.7)- Cellular Respiration Flashcards
When is ATP produced?
When glucose is broken down by the removal of hydrogen ions and electrons by dehydrogenase enzymes.
What is ATP in full form?
Adenosine triphosphate.
How is ATP made?
By joining ADP with a single inorganic phosphate molecule.
What is ADP in full form?
Adenosine diphosphate.
What enzyme is required for the synthesis of ATP from ADP and Pi?
ATP synthase.
When cells require an immediate source of energy, the “high energy” bond between the last two phosphate molecules break and energy is released for cellular processes. State two examples.
Muscle contraction and Active Transport.
When does phosphorylation occur?
When a phosphate group is added to a molecule.
What are the three processes of respiration and where do they occur?
Glycolysis- cytoplasm
The Citric Acid Cycle- the matrix of the mitochondria.
The electron transport chain- the Cristae of the mitochondria.
Does glycolysis occur in the presence or absence of oxygen?
Both
What net gain is there in glycolysis?
A net gain of 2 ATP.
What are the two phases of glycolysis?
Investment phase and Pay off phase.
How many molecules of ATP are used up per molecule of glucose?
2 ATP.
What enzyme catalyses the second phosphorylation?
Phosphofruktokinase.
How many molecules of ATP are produced in the pay off phase?
4 molecules of ATP.
In the pay off phase what enzyme releases hydrogen ions from some of the compounds in this part of the compound?
Dehydrogenase.
