Glycolysis 2. Why is G3P formed? 6. What molecule stores/transfers electrons tak

Question

Glycolysis

2.    Why is G3P formed?

6.    What molecule stores/transfers electrons taken from glucose?

2              GROOMING OF PYRUVIC ACID

2.       Why do you think it is important to have Vitamin B in your diet?

3.       The carbonyl group of pyruvate is removed and forms what molecule?

4.       The bond between the acetate and acetyl CoA is extremely unstable.  Why?

5.       If oxygen is not present, do you think pyruvate will enter the mitochondrion?  Why?

6.       In order for pyruvate to enter the mitochondrion, a transport protein is present in the plasma membrane.  Why is that necessary?   

7.       Is pyruvate a three-carbon sugar?  How can you tell? (C3H3O3)

KREBS CYCLE

1.    The carbonyl groups in the Krebs cycle are being lost as what molecule?

2.    Are the ATP’s made during the Krebs cycle made by substrate level phosphorylation oxidative phosphorylation?

3.    Glycolysis releases less than 25% of the energy stored in glucose.  The rest of the energy is stored in pyruvate.  In the Krebs cycle, the energy is transferred to what molecules?  

4.             If -ketoglutaric acid has 5 carbon atoms, how many carbons does succinic acid have?

5.             For two molecule of glucose that is oxidized during aerobic respiration, how many molecules of CO2would be released during the Krebs cycle alone?

6.             A fatty acid is partially oxidized to form 20 molecules of acetyl-CoA. Starting with these 20 molecules, how many molecules of ATP will be made directly in the Krebscycle alone?

Explanation / Answer

1,

2)G3P is a metabolite formed as an intermediate in glycolysis

It if formed as few molecules makes up the glucose molecule and others are used for recycling to regenerate ribulose 1,5 - bisphosphate acceptor

6)molecules that transfer electrons taken from glucose are called electron carriers which enters the electron transport chain in the mitochondria and ultimately gives the electron to the oxygen. Oxygen inturn receives the electrons and forms water molecule

2,

2)it is important to have vitamin B in our diet for the following reasons:-

3)the carbonyl group of pyruvate is removed to form carbondicarbon molecules and the pyruvate gets converted to acetyl coA

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