Examlex
The main idea of the entire speech is __________.
Casparian Strip
A band of cell wall material found in plant roots that helps control the movement of water and nutrients between the soil and the vascular system.
Suberin
A waxy hydrophobic substance found in the cell walls of plants, acting as a barrier to water and solute movement.
Lignin
A complex organic polymer found in the cell walls of many plants, making them rigid and woody, and contributing to their structural support.
Meristem
A region in plants where cell division occurs, leading to growth and development.
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