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. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhen an electron is shifted to a more electronegative atom, its potential energy:
| 1. | increases | 2. | decreases |
| 3. | remains same | 4. | can increase or decrease |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyThe correct sequence of electron flow during aerobic respiration would be:
1. food → Krebs cycle → ATP → NAD+
2. food → NADH → electron transport chain → oxygen
3. glucose → pyruvate → ATP → oxygen
4. glucose → ATP → electron transport chain → NADH
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyElectron is donated to the mitochondrial ETC at the lowest energy level by:
| 1. | Glucose | 2. | NADH |
| 3. | ATP | 4. | FADH2 |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyWhen electron pass downhill in the ETC, the energy released is used to pump protons into:
1. matrix of mitochondria
2. cytosol
3. mitochondrial inner membrane
4. mitochondrial intermembrane space
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyATP synthesis during oxidative phosphorylation in mitochondria is directly driven by:
| 1. | oxidation of glucose. |
| 2. | electron transport downhill in the ETC. |
| 3. | terminal transfer of electrons to oxygen. |
| 4. | chemiosmosis. |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyATP synthase is located in the mitochondrial:
| 1. | matrix | 2. | electron transport chain |
| 3. | outer membrane | 4. | inner membrane |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyChemiosmosis is coupled to energy storage by:
| 1. | NADH | 2. | ADP |
| 3. | cytochromes | 4. | ATP synthase |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyUbiquinone is:
| 1. | a protein in the mitochondrial electron transport chain |
| 2. | a substrate for synthesis of FADH |
| 3. | a vitamin used as coenzyme in Krebs cycle |
| 4. | a small hydrophobic coenzyme |
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & BiologyAll the following will normally occur during the electron flow in ETS in mitochondria except:
1. NADH and are oxidized.
2. the pH of the matrix decreases.
3. the electrons lose free energy.
4. an electrochemical gradient is formed.
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NEET MCQ Books for XIth & XIIth Physics, Chemistry & Biology
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