- 1(current)
Q. No.Which of these statements is incorrect?
| 1. | Enzymes of TCA cycle are present in mitochondrial matrix. |
| 2. | Glycolysis occurs in cytosol. |
| 3. | Glycolysis operates as long as it is supplied with NAD that can pick up hydrogen atoms. |
| 4. | Oxidative phosphorylation takes place in outer mitochondrial membrane. |
Subtopic: Glycolysis | ETS | The Respiratory Balance Sheet |
86%
From NCERT
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In the mitochondrial ETS, ubiquinone receives reducing equivalents from:
I: Complex I
II: Complex II
III: Complex III
IV: Complex IV
1. Only I and II
2. Only III and IV
3. Only I, II and III
4. Only II, III and IV
I: Complex I
II: Complex II
III: Complex III
IV: Complex IV
1. Only I and II
2. Only III and IV
3. Only I, II and III
4. Only II, III and IV
Subtopic: ETS |
81%
From NCERT
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In the mitochondrial ETS, cytochrome c:
1. is located on the outer surface of the inner mitochondrial membrane and gets oxidised when it passes electrons to Fe-s component of either Complex I or Complex II
2. is located on the inner surface of the outer mitochondrial membrane and gets reduced when it receives electrons from Fe-s component of either Complex I or Complex II
3. is located on the inner surface of the outer mitochondrial membrane and gets reduced when it receives electrons from Cua component of Complex IV
4. is located on the outer surface of the inner mitochondrial membrane and gets oxidised when it passes electrons to Cua component of Complex IV
1. is located on the outer surface of the inner mitochondrial membrane and gets oxidised when it passes electrons to Fe-s component of either Complex I or Complex II
2. is located on the inner surface of the outer mitochondrial membrane and gets reduced when it receives electrons from Fe-s component of either Complex I or Complex II
3. is located on the inner surface of the outer mitochondrial membrane and gets reduced when it receives electrons from Cua component of Complex IV
4. is located on the outer surface of the inner mitochondrial membrane and gets oxidised when it passes electrons to Cua component of Complex IV
Subtopic: ETS:2 | ETS:1 | ETS |
76%
From NCERT
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Which of the following is the primary role of oxygen in aerobic cellular respiration?
| 1. | It combines with lactate, forming pyruvate. |
| 2. | It acts as an acceptor for electrons and hydrogen, forming water. |
| 3. | It combines with carbon, forming \(\text {CO}_2\). |
| 4. | It yields energy in the form of ATP as it is passed down the respiratory chain. |
Subtopic: ETS |
84%
From NCERT
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Consider the given two statements regarding the electron transport system in mitochondria:
| Statement I: | NADH dehydrogenase is complex I. |
| Statement II: | ATP synthase is complex IV. |
1. Only Statement I is correct.
2. Only Statement II is correct.
3. Both Statement I and Statement II are correct.
4. Both Statement I and Statement II are incorrect.
Subtopic: ETS |
83%
From NCERT
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Consider the following statements:
In the Mitochondrial Electron Transport System, oxygen acts as
A: the final acceptor of electrons
B: the final acceptor of protons
1. only A is correct
2. only B is correct
3. both A and B are correct
4. both A and B are incorrect
In the Mitochondrial Electron Transport System, oxygen acts as
A: the final acceptor of electrons
B: the final acceptor of protons
1. only A is correct
2. only B is correct
3. both A and B are correct
4. both A and B are incorrect
Subtopic: ETS |
From NCERT
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Consider the given two statements:
1. Only I
2. Only II
3. Both I and II are correct
4. Neither I nor II
| I: | Ubiquinone is an electron carrier located within the inner mitochondrial membrane. |
| II: | Cytochrome c is an electron carrier located on the outer surface of the inner mitochondrial membrane. |
2. Only II
3. Both I and II are correct
4. Neither I nor II
Subtopic: ETS |
81%
From NCERT
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Which of the following statements about the mitochondrial electron transport chain is INCORRECT?
| 1. | The electron transport chain is located in the inner mitochondrial membrane. |
| 2. | Oxygen serves as the final electron acceptor in the electron transport chain. |
| 3. | The electron transport chain generates a proton gradient that drives the synthesis of ATP. |
| 4. | NADH and FADH2 donate their electrons directly to oxygen in the first step of the electron transport chain. |
Subtopic: ETS |
93%
From NCERT
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Which of the following best describes the role of oxygen in the electron transport chain during aerobic respiration?
| 1. | Oxygen is necessary to regenerate NAD+ from NADH. |
| 2. | Oxygen acts as the final electron acceptor, forming water. |
| 3. | Oxygen directly participates in the synthesis of ATP. |
| 4. | Oxygen initiates the breakdown of glucose in glycolysis |
Subtopic: ETS |
92%
From NCERT
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- 1(current)
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