Question

The cell wall is freely permeable.
A. True
B. False

Answer 1

Hint: A cell wall is a structural layer of some cells that encloses these cells. It is present outside the cell membrane which is tough, flexible, and sometimes rigid. It mainly gives the cell both the structural support and the protection, and also helps in the filtering mechanism.

Complete answer:
The cell walls are covering the outermost layer of a cell which are observed in the cell of most prokaryotes, in algae, fungi, and some eukaryotes including plants. But these cell walls are not present in animals. It is different from the cell membrane. It is present in the only plants and both nucleated and non-nucleated bacteria
In prokaryotes, the cell walls are made up of two layers which are an inner layer and an outer layer. In the case of plant cells, the cell wall has three major layers which are the primary cell wall, the middle lamella, and the secondary cell wall.
The cell wall of a plant and bacterial cells gives the structural support to the respective cells. This cell wall is definitely semi-permeable in plants. It allows small molecules and proteins to step through based on size. Any molecules under a particular size can be passed through the cell wall. The cell wall allows various nutrients like water and carbon dioxide to step directly into the cell. The excretion of low-level substances like oxygen also takes place through the cell wall to leave the cell. There is a cell membrane also present inside the cell wall in the plant cells.
As the cell wall is permeable to various molecules, nutrients like water and oxygen, and excretion substances, it is said to be freely permeable as in most plants and it allows the entry and exit of the molecules. The main function of cell walls is to work as pressure vessels and prevent over expansion of cells due to entry of water.

Therefore, the correct option is option A.

Note: The cell wall is a structural layer that is the main characteristic features of Plants and both nucleated and non-nucleated bacteria. It mainly gives a definite structure and overall protection to the cell. The composition of the cell walls varies between the organisms. The cell wall allows water, nutrients, and tiny molecules to exchange freely between the cells and the outer environment. Thus, the cell wall is freely permeable.