The interconversion of $plasmasol$ and $plasmagel$ is known as:

Select the correct match for $X$ and $Y$:

Column $X$	Column $Y$
$(1)$ Endoplasmic Reticulum	$(P)$ Provides energy for various cell functions
$(2)$ Golgi apparatus	$(Q)$ Involved in the formation of basal bodies
$(3)$ Chloroplast	$(R)$ Surrounded by a single membrane
$(4)$ Mitochondria	$(S)$ Site of synthesis of glycolipids and glycoproteins
$(5)$ Lysosomes	$(T)$ Performs photosynthesis
$(6)$ Centriole	$(U)$ Synthesis of lipids

Eukaryotic cells have organelles which may:
$(a)$ not be bound by a membrane
$(b)$ be bound by a single membrane
$(c)$ be bound by a double membrane
Group the various sub-cellular organelles into these three categories.

Which of the following is $NOT$ formed due to the extension of the plasma membrane?

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

Match List-$I$ with List-$II$.

List-$I$	List-$II$
$(a)$ Cristae	$(i)$ Primary constriction in chromosome
$(b)$ Thylakoids	$(ii)$ Disc-shaped sacs in Golgi apparatus
$(c)$ Centromere	$(iii)$ Infoldings in mitochondria
$(d)$ Cisternae	$(iv)$ Flattened membranous sacs in stroma of plastids

Choose the correct answer from the options given below.