Question

Match the following columns.

	Column I		Column II
a	Middle lamellae	(i)	Transport of molcules
b	Cell membrane	(ii)	Connect the cytoplasm of neighbouring cell
c	Plasmodesmata	(iii)	Resistance to antibiotics
d	Plasma	(iv)	Jointly secreted by daughter cells.

• A. a(i), b(ii), c(iii), d(iv)
• B. a(iv), b(i), c(ii), d(iii)
• C. a(iii), b(iv), c(i), d(ii)
• D. a(iv), b(ii), c(iii), d(i)

Answer 1

Answer: (B)

a(iv), b(i), c(ii), d(iii)

The middle lamella is the pectin layer which cements the cell walls of two adjoining plant cells together. It is the first-formed layer which is deposited at the time of cytokinesis. The cell membrane is a biological membrane that separates the cells from the outside environment (the extracellular space) which protects the cell from its environment. It consisting of a lipid bilayer with embedded proteins. Plasmodesmata (singular: plasmodesma) are microscopic channels that transverse the cell walls of plant cells and some algal cells, enabling transport and communication between them. The cell wall surrounds the plasma membrane and provides the cell tensile strength and protection. Plasma membrane act as the semipermeable membrane.

So the correct option is ' a(iv),b(i),c(ii),d(iii)' .