Question:
As per chemiosmotic coupling hypothesis, in mitochondria, protons accumulate in the
As per chemiosmotic coupling hypothesis, in mitochondria, protons accumulate in the
Updated On: Jul 25, 2024
- outer membrane
- inner membrane
- intermembrane space
- matrix
Hide Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
Chemiosmotic coupling hypothesis, proposed by Peter Mitchell $(1961$, $66)$ (Nobel Prize in $1978$), is the most widely accepted theory for oxidative phosphorylation. Reduced $NAD$ (i.e., $NADH$), released from Krebs' cycle, when enters in the $ETS$, transports three pairs of $H^+$ across the inner mitochondrial membrane to the intermembrane space. Similarly, $NADH$ from glycolysis and $FADH_2$ from Krebs' cycle also transport pairs of $H^+$ into intermembrane space. Each molecule of $NADH$ released from glycolysis or $FADH^2$ from Krebs' cycle transports two pairs of protons into intermembrane space. This unidirectional flow of protons results in the accumulation of protons in the intermembrane space.
Was this answer helpful?
0
0
Top Questions on respiration in plants
- Given below are two statements:
Statement I: In C3 plants, some O2 binds to RuBisCO, hence CO, fixation is decreased.
Statement II: In C4 plants, mesophyll cells show very little photorespiration while bundle sheath cells do not show photorespiration.
In the light of the above statements, choose the correct answer from the options given below:- NEET (UG) - 2024
- Biology
- respiration in plants
- Identify the step in tricarboxylic acid cycle, which does not involve oxidation of substrate.
- NEET (UG) - 2024
- Biology
- respiration in plants
- Inorganic phosphate is involved in which step of respiration?
- MHT CET - 2024
- Biology
- respiration in plants
- Lenticels are the respiratory organs exists in____part of plant.
- TS POLYCET - 2023
- Biology
- respiration in plants
- Mangrove plants respire with their_____
- TS POLYCET - 2023
- Biology
- respiration in plants
View More Questions
Questions Asked in NEET exam
- An oxygen cylinder of volume 30 litre has 18.20 moles of oxygen. After some oxygen is withdrawn from the cylinder, its gauge pressure drops to 11 atmospheric pressure at temperature \(27^\circ\)C. The mass of the oxygen withdrawn from the cylinder is nearly equal to: [Given, \(R = \frac{100}{12} \text{ J mol}^{-1} \text{K}^{-1}\), and molecular mass of \(O_2 = 32 \text{ g/mol}\), 1 atm pressure = \(1.01 \times 10^5 \text{ N/m}^2\)]
- NEET (UG) - 2025
- Ideal-gas equation and absolute temperature
- Two cities X and Y are connected by a regular bus service with a bus leaving in either direction every T min. A girl is driving scooty with a speed of 60 km/h in the direction X to Y. She notices that a bus goes past her every 30 minutes in the direction of her motion, and every 10 minutes in the opposite direction. Choose the correct option for the period T of the bus service and the speed (assumed constant) of the buses.
- NEET (UG) - 2025
- Relative Velocity
- Two gases A and B are filled at the same pressure in separate cylinders with movable pistons of radii \(r_A\) and \(r_B\) respectively. On supplying an equal amount of heat to both the cylinders, their pressures remain constant and their pistons are displaced by 16 cm and 9 cm respectively. If the change in their internal energies is the same, then the ratio \(r_A / r_B\) is:
- NEET (UG) - 2025
- Thermodynamics
- Given below are two statements:
Statement I: Fig fruit is a non-vegetarian fruit as it has enclosed fig wasps in it.
Statement II: Fig wasp and fig tree exhibit a mutual relationship as the fig wasp completes its life cycle in the fig fruit and the fig fruit gets pollinated by the fig wasp. - Given below are two statements: One is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): Cells of the tapetum possess dense cytoplasm and generally have more than one nucleus.
Reason (R): Presence of more than one nucleus in the tapetum increases the efficiency of nourishing the developing microspore mother cells.- NEET (UG) - 2025
- Reproduction in Plants
View More Questions
Concepts Used:
Respiration in Plants
Respiration in plants is a process that entails the production of energy in plants. This process can simply be described as the intake of Oxygen and the release of Carbon Dioxide as an outcome of the oxidation of complex organic compounds. Though plants do not have any specific organ to balance the process of respiration, their stems, roots, and leaves do this work at a very low rate than other living beings. The process of respiration is very crucial for the plants to sustain the growth of the plant tissues.
This process can be stated as-
\[C_6H_{12}O_6 + 6O_2 → 6CO_2 + 6H_2O + \text{Energy}\]