Identify the correct sequence starting from the synthesis of protein to its transportation and packaging.

Column $-I$ represents scientists and Column $-II$ represents their discoveries. Choose the correct option:

Column $-I$	Column $-II$
$(A)$ Robert Hooke	$(i)$ Cell Theory
$(B)$ Robert Brown	$(ii)$ Golgi apparatus
$(C)$ Schleiden and Schwann	$(iii)$ Cell
$(D)$ Camillo Golgi	$(iv)$ Nucleus

Select the correct option for the following statements:
$(i)$ $A$ chromosome in which the centromere is situated near the middle is called a metacentric / submetacentric chromosome.
$(ii)$ The air vacuole / contractile vacuole helps in osmoregulation.

Which stain is used for electron microscopy?

Which of the following is absent in an animal cell?

Column-$I$ lists organelles and Column-$II$ lists their functions. Select the correct option:

Column-$I$	Column-$II$
$(A)$ Mitochondria	$(i)$ Suicidal bag
$(B)$ Chloroplast	$(ii)$ Synthesis of steroids
$(C)$ Lysosome	$(iii)$ Photosynthesis
$(D)$ Smooth Endoplasmic Reticulum	$(iv)$ $ATP$ production