Question

Oxysomes or ${ F }_{ 0 }{ -F }_{ 1 }$ particles occur on
(a)Thylakoids
(b)Mitochondrial surface
(c)Inner mitochondrial membrane
(d)Chloroplast surface

Answer 1

Hint: Oxysomes occur on the wall of an organelle that is rightfully called the powerhouse of the cell. It is responsible for the generation of ATP through the oxidation of glucose. This releases energy which helps to join ADP and inorganic phosphates which gives ATP.

Complete answer:
Oxysomes or ${ F }_{ 0 }{ -F }_{ 1 }$ particles occur on the inner mitochondrial membrane.
Let's begin the explanation by understanding what oxysomes are.
The energy released during the electron transport system is utilized in generating ATP with the help of ATP synthase (complex V). This complex is made up of two major components, ${ F }_{ 0 }$ and ${ F }_{ 1 }$. The ${ F }_{ 1 }$ headpiece is a protein complex of the peripheral membrane. It contains the site for synthesis of ATP from ADP, and also inorganic phosphate. ${ F }_{ 0 }$ is an integral membrane protein complex. It includes the channel through which protons cross the inner membrane of mitochondria. The catalytic site where the production of ATP takes place on the ${ F }_{ 1 }$ is coupled with the channel which allows the passage of protons. 2 ions of ${ H }^{ + }$ pass through the intermembrane space to the mitochondrial matrix down the electrochemical gradient for every ATP that is produced.

Additional Information: -The two membranes divide the lumen of mitochondria distinctively into two aqueous compartments.
-Oxysomes are also called ‘elementary particles.’ They play a major role in respiration by taking part in oxidation reactions thus generating ATP.
-The arrangement of thylakoids is in the form of stacks like the piles of coins. This is called ‘granum.’
So, the correct answer is, ‘Inner mitochondrial membrane.’

Note: -Mitochondria is a double membranous structure with its outer and inner membranes. The two membranes of mitochondria have their specific enzymes associated with the organelle’s function.
-Like mitochondria chloroplast also possesses two membranes. Out of the two, the inner membrane of the chloroplast is relatively less permeable.
-Within the stroma of chloroplast, organized flattened membrane sacs are seen. These are called ‘thylakoids.’