9 - Cellular Respiration Flashcards
How long does ATP last in your body
30 sec
unstable, and not stored
Cellular respiration happens in 4 steps, list them
- Glycolysis
- Pyruvate processing
- Citric acid cycle
- Electron Transport & chemiosmosis
Where does glycolysis occur
in the cytosol
Why do we breathe
to metabolize glucose into CO2 + H2O + ATP
There are two main ways that ATP can be cashed in on, what are they
- Cellular respiration
- Fermentation
How many steps are there in glycolysis
10 steps
For each molecule of glucose that goes into glycolysis, what is the net result
- 2 molecules of ATP
- 2 molecules of NADH
- 2 molecules pyruvate
What happens when the are high levels of ATP in the system
ATP acts as an allosteric inhibition
What is feedback intuition
what a product impeds the process when its abundant
Where does the ATP bind when it is in abundance
onto the regulatory site
how many phosphate groups does the glycolysis process need to get over the energy barrier to start the reaction
2 ATP
Where is pyruvate processed
in the mitochondrial matrix
What does pyruvate react with as a coenzyme
Coenzyme A
What are the inputs for pyruvate processing
pyruvate
NAD+
Coenzyme A
What are the outputs for pyruvate processing
NADH
CO2
Acetyl CoA
When NAD+ are changed to NADH, what is occuring here
2 electrons are being given up
True/False
there are both positive and negative feedback controls for pyruvate processing
True
What is the purpose of the citric acid cycle
to extract electrons in CH3 bonds for acetyle CoA = has high PE
the citric acid cycle begins with ______ and ends with _________
citrate; oxaloatetate
Because glycosis produces ___ molecules of pyruvate, the citric acid cycle turns ___ times for each molecule processed in cellular respiration
2; 2
in the citric acid cycle, for each molecule of glucose, what are the outputs
6 CO2
10 NADH
2 FADH2
4 ATP
Is ubiquinoue a protein
no
it`s known as coenzyeme Q
what is a distigushing factor about coenzyme Q
consists of a carbon-containing ring witha hydrophobic tail
= moves easily through the membrane