Answer:
False. The statement that the cell walls of humans are composed of a fluid mosaic of proteins and phospholipids is incorrect.
Step-by-step explanation:
In humans, the cell membrane, also known as the plasma membrane, is composed of a fluid mosaic of proteins and phospholipids. The cell membrane is a crucial component of animal cells, including human cells. It surrounds the cell and acts as a barrier, controlling the movement of substances in and out of the cell.
On the other hand, cell walls are found in plant cells, fungi, bacteria, and some protists. These cell walls are composed of different materials depending on the organism. In plants, the cell wall is mainly composed of cellulose, which provides structural support and protection to the cell. In fungi, the cell wall is made up of chitin, while bacteria have cell walls composed of peptidoglycan.
Therefore, the correct statement is that the cell walls of humans are not composed of a fluid mosaic of proteins and phospholipids.