Non-membranous cell organelles are

Which of the following is an endomembrane system component?

Match the following columns based on the cell types shown in the image.

The magnification power of a light compound microscope depends on .........

In the given figure,what do the parts labeled '$a$' and '$b$' represent respectively?

Assertion $(X)$: The cell is a wonderful marvel of the world.
Reason $(Y)$: It converts nutrients into free energy and contains its own information in the form of genetic material.