Lecture 18 - Energy Flashcards
Where does Aerobic (oxidative) production of ATP occur in?
the mitochondria of muscle cell
how many mitochondria are there in muscle cells?
between 300-600 (increased with training)
what two things can be converted to ATP?
Glycogen
Fats
True or False: There is lactic acid produced in Oxidative production of ATP.
False, there is no lactic acid produced
How much ATP is made per unit of glucose? (compare to anaerobic processes.
There are 36 molecules of ATP made per glucose molecule (18 times more than anaerobic processes)
How long does the energy last in the oxidative process? (is there a reason it wouldnt be that high, how would it be that long?)
approximately 10 min long ( would last this long if the muscles had sufficiend mitochondria, enough oxygen supplied to the mitochondria and enzymes or intermediate products dont limit the Kreb’s cycle)
Whats the difference of yield from glucose and yield from fat molecules?
1 molecule of glucose = 36 ATP
1 molecule of fat = 169 ATP
What by products are created in the Aerobic (oxidative) production of ATP?
Carbon dioxide
Water
Where does the Kreb’s Cycle take place?
The mitochondrion
What cycle makes ATP as a product? and what does this cycle use to make ATP?
The Kreb’s cycle
uses carbs, fats(protein) and oxygen
What are the two aerobic processes called that create ATP?
Kreb’s Cycle
Cori Cycle
Where does the Cori cycle take place?
inside the liver
What happens in the cori cycle?
lactic acid is taken to the liver to be metabolized back into pyruvic acid then glucose
What 4 things does training increase on the aerobic system?
- enzyme and mitochondria
- glycogen stores
- oxygen delivery capacity (capillaries, myoglobin)
- triglyceride (fat) in muscle cells & increased use of fat
What is Aerobic power?
maximal volume of oxygen that can be consumed in a given time per kilogram of body mass
