The products of fermentation do not include:
1. | CO2 | 2. | O2 |
3. | ethanol | 4. | lactate |
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Oxidative decarboxylation of pyruvate produces:
1. | 2. Citrate |
3. Acetyl-CoA | 4. G3P |
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The stage of cellular respiration that directly involves oxygen is:
1. | glycolysis |
2. | at the end of ETC |
3. | Krebs cycle |
4. | the phosphorylation of ADP to form ATP |
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When an electron is shifted to a more electronegative atom, its potential energy:
1. | increases | 2. | decreases |
3. | remains same | 4. | can increase or decrease |
Consider the steps of glycolysis given in the diagram:
What is true about reaction 1?
I. Hexokinase is a transferase
II. It acts to keep the glucose concentration low
III. It blocks the glucose from leaking out
1. Only I and II
2. Only I and III
3. Only II and III
4. I, II and III
What process in aerobic respiration generates maximum ATP?
1. | substrate-level phosphorylation | 2. | chemiosmosis |
3. | Krebs cycle | 4. | Pyruvate decarboxylation |
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Consider the steps of glycolysis given in the diagram:
Regarding reaction 2 in the diagram:
I: | Fructose can also enter the glycolytic pathway by phosphorylation at this point. |
II: | Under conditions of high F6P concentration, this reaction readily runs in reverse. |
1. Only I is true
2. Only II is true
3. Both I and II are true
4. Both I and II are false
Consider the steps of glycolysis given in the diagram:
Regarding reaction 3 in the diagram:
I: | The reaction is a key regulatory point and is also the rate-limiting step. |
II: | The reaction is freely reversible. |
1. Only I is true
2. Only II is true
3. Both I and II are true
4. Both I and II are false
In aerobic respiration, oxygen acts as:
I: | Terminal electron acceptor |
II: | Terminal proton acceptor |
1. | Only I | 2. | Only II |
3. | Both I and II | 4. | Neither I nor II |
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is produced in
1. | glycolysis | 2. | the oxidation of pyruvate |
3. | the Krebs cycle | 4. | the electron transport chain |
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