Identify the location and function of the following cell components:
$(i)$ Middle lamella
$(ii)$ Leucoplast
$(iii)$ Kinetochore

(N/A) $(i)$ Middle lamella:
Location: It is a layer primarily composed of calcium pectate found between the walls of adjacent plant cells.
Function: It acts as a cementing layer that holds neighboring cells together.
$(ii)$ Leucoplast:
Location: Found in plant cells,particularly in non-photosynthetic tissues.
Function: These are plastids that store nutrients such as starch (amyloplasts),fats (elaioplasts),and proteins (aleuroplasts).
$(iii)$ Kinetochore:
Location: These are disc-shaped structures present on the sides of the centromere of a chromosome.
Function: They serve as attachment sites for spindle fibers during cell division.