Exam preparation - Glycolysis
13 important questions on Exam preparation - Glycolysis
4 - i) Where does a metabolic reaction occur?
4 - ii) What is the final output (end products) of glycolysis?
4 - ii) At what stage in the process of glycolysis are the two pyruvate compounds made?
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4 - iii) What happens once glucose entered the blood after digestion?
4 - iv) What purpose is the final output of glycolysis used for under aerobic conditions?
4 - iv) What are four main details of glycolysis under anaerobic conditions?
In the P to L conversion, N is also converted to N
The N can be used in step 6 of G to make another two ATP
This gives a net gain of ATP from each G cycle
4 - v) What additional steps demonstrate why it is necessary for us to perform the glycolysis reaction?
This ATP is used to power C processes
I) In the preparation phase of glycolysis, steps 1 and 3 of glycolysis are phosphorylation reactions. Phosphorylation reactions each require one ATP to be performed, for two ATP required in total. Do the products of steps 1 and 3 have more or less phosphate units attached than the initial reactants?
5 - i) How does ATP assist the phosphorylation reactions in the preparation phase of glycolysis, steps 1 and 3?
ATP is converted to ADP via the breakage of a P bond which releases energy and a P unit
5 - i) How does the energy released from ATP assist the phosphorylation reactions in the preparation phase of glycolysis, steps 1 and 3?
5 - ii) What are the four main parts of step 6 of glycolysis?
This allows the R to be oxidised where the R loses a H atom
An additional P unit is attached to the P
This is in the position where the H atom had been lost due to oxidation
Iii) In the pay-off phase of glycolysis, steps 7 and 10 of glycolysis are substrate level phosphorylation steps. ATP is a product of each of these substrate level phosphorylation reactions (each reaction occurs twice for a total of 4 ATP). Describe in three main points where the additional phosphate comes from to regenerate ATP (from ADP) in these steps?
The P unit that attaches to ADP in order to regenerate ATP comes off the R of the G R
As a result, the P of the R has one less P unit than the initial R did
5 - iii) What is the phosphorylation reaction that takes place in step 10 of glycolysis?
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