Which of the following statements accurately describes the composition and function of the cell wall and middle lamella in plant cells?

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The secondary cell wall is present in all young plant cells and is mainly responsible for cell-to-cell adhesion, while the middle lamella is made of hemicellulose and aids in cell growth.

Both the primary and secondary cell walls are rich in galactans and mannans, and the middle lamella, composed of cellulose, is responsible for protecting the cell from mechanical damage.

The primary cell wall is composed mainly of proteins and is incapable of growth, while the middle lamella is rich in cellulose and facilitates cellular communication.

The cell wall in algae is primarily made of cellulose, galactans, mannans, and calcium carbonate, whereas in other plants, it contains cellulose, hemicellulose, pectins, and proteins. The middle lamella, mainly composed of calcium pectate, glues adjacent cells together.

answer is B.

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Detailed 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.

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