Question

Oxysomes or ${F_0} - {F_1}$ particles occur on
A. Thylakoids
B. Mitochondrial surface
C. Inner mitochondrial membrane
D. Chloroplast surface

Answer 1

Oxysomes are the small round structures that are responsible for ATP synthesis. They are also known as ${F_0} - {F_1}$ particles. They have certain special enzymes that help in the synthesis of ATP.

Complete answer:
First of all let us see what oxysomes are.
They are the small round structures that are responsible for ATP synthesis. They are also known as ${F_0} - {F_1}$ particles. They have certain special enzymes that help in the synthesis of ATP.
They are also known as ATP synthase for their role in synthesis of ATP.
They are present on the surface of the folded cristae of the inner mitochondrial membrane.
As we know that mitochondria is responsible for the production of ATP in the cell and that is why it is also known as the powerhouse of the cell.
So this function of ATP production and oxidation is performed by these oxysomes present on the surface of the inner mitochondrial membrane
Now let us see in brief about the other options also,
Thylakoids are the compartments inside the chloroplasts and cyanobacteria and they are membrane bound organelles.
Next option is mitochondrial surface, so the outer surface of the mitochondria basically forms the continuous boundary of the organelles.
And the third option we have already discussed above.

And the last option is chloroplast surface. Chloroplasts are the lens shaped, oval , ribbon shaped or discoid organelles present in the green plants.

Note: Kindly note that although both mitochondria and chloroplast make ATP, in chloroplast, ATP production takes place in the chloroplast stroma due to an electron transport process occurring in the thylakoid membrane.