ONE CELL THICK !
alveolar wall
There are three major alveolar cell types in the alveolar wall (pneumocytes):* Type I cells that form the structure of an alveolar wall* Type II cells that secrete surfactant to lower the surface tension of water and allows the membrane to separate thereby increasing the capability to exchange gases.* Type III cells that destroy foreign material, such as bacteria.
the thick walls keep the cells organelles inside of the cell
The typical cell making up the alveolar wall is the type I pneumocyte. These cells are thin and delicate, allowing for efficient gas exchange between the alveoli and the blood vessels. Type II pneumocytes are also present in the alveolar wall and play a role in producing surfactant to reduce surface tension and prevent alveolar collapse.
Cells of the pith of a stem generally have thick cell wall and large vacuoles. Likewise, cells of the cortex in the older parts have thick cell wall and large vacuoles.
It is just one cell thick - or 30 micrometres.
Spores or Endospores.
The respiratory membrane is formed by a combination of the walls of alveoli and walls of capillaries. It consists of type 1 alveolar cells, a basement membrane, capillary endothelium, alveolar epithelium and macrophages.
The wall of the alveoli in the lungs is composed of simple squamous epithelium (also known as type I alveolar cells). These cells are thin and specialized for gas exchange, allowing oxygen to diffuse into the bloodstream and carbon dioxide to diffuse out.
Prokaryotic cells, such as bacteria, do not have a well-defined nucleus, but instead have a nucleoid region where the genetic material is located. They also have a thick cell wall for protection and ribosomes for protein synthesis.
None. Firstly, there is no cell wall in an animal cell. This only occurs in plants. The cell membrane and cell wall are organelles. They are part of a cell. A cell is the smallest building block of the body (the whole body is constructed of cells), and cells are not made up of cells. If you meant capillaries, the answer then is that the wall is one cell thick, and perhaps has two or three cells around it's circumference - it is very thin indeed.
How thick is hadrian wall