The cell membrane surrounds all cells and controls movement of substances. It is selectively permeable, allowing some materials to enter or leave, while protecting and maintaining the cell’s internal environment.
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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.
The cell interior contains cytoplasm, nucleus and organelles that work together. Each part performs specific functions, coordinating activities like energy production, transport and control, ensuring proper functioning of the cell.
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.
Cutting equal-sized potato pieces and measuring initial weight ensures fair comparison. It helps observe accurate changes due to osmosis, avoiding errors caused by size or mass differences in the experiment results.