Class 9 Exam > Class 9 Videos > Hypotonic, Isotonic, Hypertonic
Hypotonic, Isotonic, Hypertonic Video Lecture - Class 9
FAQs on Hypotonic, Isotonic, Hypertonic Video Lecture - Class 9
| 1. What is the definition of hypotonic, isotonic, and hypertonic solutions? |  |
Ans. Hypotonic, isotonic, and hypertonic solutions refer to different concentrations of solutes in a solution. In a hypotonic solution, the concentration of solutes is lower compared to the solute concentration inside the cell. In an isotonic solution, the concentration of solutes is equal inside and outside the cell. In a hypertonic solution, the concentration of solutes is higher compared to the solute concentration inside the cell.
| 2. How do hypotonic, isotonic, and hypertonic solutions affect cells? | |
Ans. Hypotonic solutions cause cells to swell and potentially burst or lyse due to an influx of water. Isotonic solutions maintain the normal shape and size of cells as the concentration of solutes is the same inside and outside the cell. Hypertonic solutions cause cells to shrink or crenate as water leaves the cell to balance the higher concentration of solutes outside.
| 3. What are the applications of hypotonic, isotonic, and hypertonic solutions? | |
Ans. Hypotonic solutions are commonly used in medical settings to rehydrate patients with severe dehydration. Isotonic solutions, such as saline, are used to replenish fluids and maintain electrolyte balance during medical procedures or in cases of dehydration. Hypertonic solutions have applications in various medical treatments, such as drawing out excess fluid from swollen tissues or reducing brain swelling.
| 4. How can hypotonic, isotonic, and hypertonic solutions be used in biology experiments? | |
Ans. In biology experiments, hypotonic, isotonic, and hypertonic solutions can be used to study osmosis and the effects of different solute concentrations on cells. By exposing cells to these solutions, researchers can observe changes in cell size and shape, as well as the movement of water across the cell membrane.
| 5. Are there any risks or side effects associated with the use of hypotonic, isotonic, and hypertonic solutions? | |
Ans. While isotonic solutions are generally safe for medical use, hypotonic and hypertonic solutions can have potential risks. Hypotonic solutions may cause cells to burst or lyse, which can be harmful. Hypertonic solutions can lead to dehydration of cells and potential tissue damage. It is important to use these solutions under appropriate medical supervision to prevent any adverse effects.
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Nov 15, 2024 Last updated |
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