NEETBotanyCell - The Unit of Life
What is the middle lamella in plants and fungi?
Options
- AA layer of cellulose and hemicellulose
- BA layer of calcium pectate that holds neighbouring cells together
- CA layer of proteins that helps in cell-to-cell interaction
- DA layer of minerals like calcium carbonate that gives shape to the cell
Correct answer
B. A layer of calcium pectate that holds neighbouring cells together
Step-by-step solution
The cell wall of a young plant cell, the primary wall is capable of growth, which gradually diminishes as the cell matures and the secondary wall is formed on the inner (towards membrane) side of the cell. The middle lamella is a layer mainly of calcium pectate which holds or glues the different neighbouring cells together . The cell wall and middle lamellae may be traversed by plasmodesmata which connect the cytoplasm of neighbouring cells