General
✓✗Match List I (substrate or condition) with List II (RQ).
| List I | List II |
| P. Glucose (aerobic) | 1. About 0.9 |
| Q. Tripalmitin | 2. Infinity |
| R. Protein | 3. 1.0 |
| S. Alcoholic fermentation | 4. About 0.7 |
- P-1, Q-4, R-3, S-2
- P-3, Q-4, R-1, S-2
- P-3, Q-1, R-4, S-2
- P-4, Q-3, R-1, S-2
General
✓✗Of the 38 ATP from one glucose (NCERT count), how many are formed by oxidative phosphorylation?
- 4
- 30
- 34
- 36
General
✓✗The last step of the TCA cycle, which regenerates OAA, is the oxidation of
- citric acid
- fumaric acid
- succinic acid
- malic acid
General
✓✗The equation used in NCERT to show the RQ of glucose is
- C6H12O6 + 6O2 → 6CO2 + 6H2O + energy
- 2(C51H98O6) + 145O2 → 102CO2 + 98H2O + energy
- 6CO2 + 12H2O → C6H12O6 + 6O2 + 6H2O
- C6H12O6 → 2C2H5OH + 2CO2
General
✓✗NCERT notes that pure proteins or fats are never used as respiratory substrates. Which of the following follows from this?
- Fats can never be respired by any cell.
- Measured RQ values lie between substrate values.
- Proteins can never be respired by cells.
- Measured RQ values are always exactly 1.
General
✓✗Read the statements and choose the correct option.
Statement I: In alcoholic fermentation, CO2 is released.
Statement II: In lactic acid fermentation, NADH is oxidised to NAD+.
Statement I: In alcoholic fermentation, CO2 is released.
Statement II: In lactic acid fermentation, NADH is oxidised to NAD+.
- Both Statement I and Statement II are true.
- Both Statement I and Statement II are false.
- Statement I is true but Statement II is false.
- Statement I is false but Statement II is true.
General
✓✗Which of the following would give an RQ less than 1?
- yeast fermenting glucose
- castor seed oil respired aerobically
- malic acid respired aerobically
- glucose respired aerobically
General
✓✗The first product of the TCA cycle is
- citric acid
- oxalosuccinic acid
- oxaloacetic acid
- cis-aconitic acid
General
✓✗Which of the following statements correctly compares chemiosmosis in mitochondria and chloroplasts?
- Protons accumulate in the matrix in mitochondria and in the stroma in chloroplasts.
- Protons are not used in mitochondria.
- Protons accumulate in the cytoplasm in both.
- Protons accumulate in the intermembrane space in mitochondria and in the thylakoid lumen in chloroplasts.
General
✓✗The terminal electron acceptor in aerobic respiration is
- molecular H2
- molecular O2
- CO2
- NADP+
General
✓✗The respiratory balance sheet is a theoretical exercise because it makes certain assumptions. One assumption is that
- glycolysis, TCA cycle and ETS work one after another
- no NADH is formed in glycolysis or the cycle
- fats and proteins are respired along with glucose
- O2 is not needed at any step of respiration
General
✓✗Which of the following is NOT produced in the TCA cycle?
- FADH2
- CO2
- O2
- NADH
General
✓✗Consider the following statements.
(A) Fermentation gives a net gain of 2 ATP per glucose.
(B) In aerobic respiration, NADH is oxidised slowly.
(C) Aerobic respiration releases CO2 and water as end products.
(D) Glycolysis is common to fermentation and aerobic respiration.
How many statements are correct?
(A) Fermentation gives a net gain of 2 ATP per glucose.
(B) In aerobic respiration, NADH is oxidised slowly.
(C) Aerobic respiration releases CO2 and water as end products.
(D) Glycolysis is common to fermentation and aerobic respiration.
How many statements are correct?
- one
- two
- three
- four
General
✓✗Which of the following gives the RQ of a substrate whose oxidation uses 12 volumes of O2 and releases 12 volumes of CO2?
- 0.5
- 1.0
- 1.2
- 12
General
✓✗Glycolysis is the only process of respiration in
- aerobic plants
- birds
- mammals
- anaerobic organisms