Transportation in Plants and Circulation in Animals — Science STD 10 — Question
Tamilnadu BoardEnglish MediumSTD 10ScienceTransportation in Plants and Circulation in Animals2 Marks
Question
Define the following.
Diffusion
Osmosis
Plasmolysis
✓
Answer
Diffusion: The movement of molecules in liquid and solids from a region of higher concentration to a region of lower concentration, without the utilization of energy is called Diffusion.
Osmosis: Osmosis is the movement of solvent or water molecules, from the region of higher concentration to the region of lower concentration through a semi – permeable membrane.
Plasmolysis: Plasmolysis is a process, which occurs, when water moves out of the cell and resulting in the shrinkage of the cell membrane, away from the cell wall.
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