Yes, mature red blood cells in humans lack a nucleus. This helps them carry more oxygen. Some other specialised cells may also lose their nucleus to perform specific functions efficiently.
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The cell wall is a rigid outer layer in plant cells. It provides support, protection and shape, helping plants remain upright and withstand environmental stress like wind and pressure.
Eukaryotic cells need organelles to perform different functions efficiently. Each organelle carries out a specific task like energy production, protein synthesis and waste removal, ensuring smooth and organised functioning of the cell.
If a plant cell wall becomes flexible, the cell will lose its rigidity and shape. It may shrink under stress and fail to support the plant, affecting its structure and stability.
If soaked mung bean seeds are placed in a concentrated solution, they will lose water due to osmosis. As a result, the seeds will shrink and become smaller in size.