Which of the following statements regarding mitochondrial membrane is not correct?
- The outer membrane is permeable to all kinds of molecules
- The enzymes of the electron transfer chain are embedded in the outer membrane
- The inner membrane is highly convoluted forming a series of infoldings
- The outer membrane resembles a sieve
The Correct Option is B
Solution and Explanation
In mitochondria, the enzymes of the electron transport chain (ETC) are not embedded in the outer membrane but rather in the inner mitochondrial membrane. The inner mitochondrial membrane is where the ETC proteins and complexes are located, and it plays a crucial role in oxidative phosphorylation and ATP production. The outer membrane of mitochondria is relatively permeable and contains porins, which allow the passage of various molecules, but it does not contain the ETC enzymes.
So, the correct option is (B): The enzymes of the electron transfer chain are embedded in the outer membrane
Top Questions on Respiration in plants
- Assertion (A): TCA cycle requires continuous replenishment of oxaloacetic acid.
Reason (R): TCA cycle requires regeneration of NAD\textsuperscript{+} and FAD\textsuperscript{+} from NADH and FADH.- AP EAPCET - 2025
- Botany
- Respiration in plants
- Reason of rising of dough
- AIIMS - 2024
- Biology
- 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
Questions Asked in NEET exam
The current passing through the battery in the given circuit, is:
- NEET (UG) - 2025
- Current electricity
A bob of heavy mass \(m\) is suspended by a light string of length \(l\). The bob is given a horizontal velocity \(v_0\) as shown in figure. If the string gets slack at some point P making an angle \( \theta \) from the horizontal, the ratio of the speed \(v\) of the bob at point P to its initial speed \(v_0\) is :
- NEET (UG) - 2025
- Pendulums
- 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
- The intensity of transmitted light when a polaroid sheet, placed between two crossed polaroids at \(22.5^\circ\) from the polarization axis of one of the polaroids (\(I_0\) is the intensity of polarised light after passing through the first polaroid):
- NEET (UG) - 2025
- Polarization
A full wave rectifier circuit with diodes (\(D_1\)) and (\(D_2\)) is shown in the figure. If input supply voltage \(V_{in} = 220 \sin(100 \pi t)\) volt, then at \(t = 15\) msec:
- NEET (UG) - 2025
- Semiconductor Diode
Concepts Used:
Eurkaryotic Cells - Golgi Apparatus
The Golgi apparatus is also known as the Golgi complex or the Golgi body. The term is derived from Camillo Golgi, the scientist who discovered the organelle. It can be found in all eukaryotic cells, including plants and animals. They are membrane-bound organelles found in the cell's cytoplasm.
Formation of acrosome: The acrosome is a component of the tip of animal sperms that aids in the digestion of the egg or ovum covering sheath during fertilisation. The Golgi complex produces it with the help of its vesicles.