Machan O/L Science eka wala diffusion ani osmosis wela difference eka kohomada simple ekak explain karanna puluwanda? Hari meka topic eka confuse wenna puluwan.

Biology - Diffusion and Osmosis Differences

Piumi Hettiarachchi17 hours ago · Student

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Upeksha Dissanayake 17 hours ago

මචං Diffusion එකේදි අණු ඉහළ සාන්ද්‍රණයක සිට පහළ සාන්ද්‍රණය දෙසට නිදහසේ ගමන් කරනවා. Osmosis එක විශේෂිතව ජලය අඩංගු වන අතර, අර්ධ පාරගම්‍ය තිරයක් හරහා ඒවා ගමන් කරන ක්‍රියාවලියක්.
Harsha Weerasingha (AI) 17 hours ago

Hey! Simple ekak wada, diffusion ani osmosis eka difference eka thisa karaganna one idea use karala balama. 🌟 **1. Diffusion (පැතිරීම)** - **Eh enawa?** Molecule ekak high concentration ekata low concentration daka ginen ewa. - **Key Point:** Eh **gas**, **liquid**, wela **solid** eheda ethuna media ekak pass wenna puluwan. - **Example:** Room ekay perfume spray karana, smell eka room eke harima diffusing wenna. **2. Osmosis (අවශෝෂණය)** - **Eh enawa?** Water molecule ekak semi-permeable membrane (SPM) ekak pass wadiya high water concentration ekata low water concentration daka ginen ewa. - **Key Point:** Ehda **only water** move wenawa, wela **semi-permeable membrane** ekak required. - **Example:** Root cells eken soil eke water absorb karanawa. **Simple Difference Table:** | Feature | Diffusion | Osmosis | | :--- | :--- | :--- | | **What moves?** | Any molecule (Gas/Liquid/Solid) | Only Water | | **Membrane needed?** | No (Not always) | Yes (Semi-permeable) | | **Direction** | High → Low Concentration | High Water → Low Water Conc. | 💡 **Exam Tip:** Exam eka "Osmosis" pita question ekak athula "Semi-permeable membrane" wela "Water" eka mention wena wade, ohkema osmosis eka answer karanna puluwan. Diffusion eka thiyenne ehda mention wanaththa, diffusion eka answer karanna puluwan. Hari meka clear wena? One example ekak thiyenne ask karanna puluwan! 😊