Читать книгу Cell Biology - Stephen R. Bolsover - Страница 22

Many types of cell, particularly bacteria and plant cells, create a rigid case around themselves called a cell wall. For cells that live in an extracellular medium more dilute than their own cytosol, the cell wall is critical in preventing the cell bursting. For example, penicillin and many other antibiotics block the synthesis of bacterial cell walls with the result that the bacteria burst. Within trees, plant cells modify the cell wall to generate the woody trunk. Animal cells do not have cell walls.