OSMOSIS EXPERIMENTS

OSMOSIS IN PLANT CELLS

OBSERVING TURGIDITY AND PLASMOLYSIS IN PLANT CELLS.MATERIALS.SLIDES, COVER-SLIPS, ISOTONIC SOLUTION, STRONG SOLUTION (HYPERTONIC),DISTILLED WATER (HYPOTONIC SOLUTION).DROPPER.CAPSULES.TWEEZERS(FORCEPS). SCISSORS LABELS.PIPETTES(plastic)

OSMOSIS EXPERIMENTS

OSMOSIS IN PLANT CELLS

OBSERVING TURGIDITY AND PLASMOLYSIS IN PLANT CELLS.MATERIALS. SOLUTIONSISOTONIC SOLUTION (Saline Solution). 0,9 % ---0,9 g of Sodium Chloride in 100 cc of Distilled water.STRONG SOLUTION (HYPERTONIC), 9%----9 g of Sodium Chloride in 100cc of Distilled water.DISTILLED WATER (HYPOTONIC SOLUTION).

Distilled water is water that has many of its impurities removed through distillation. Distillation involves boiling the water and then condensing the steam into a clean container.

OSMOSIS EXPERIMENTS

OSMOSIS IN PLANT CELLS

OBSERVING TURGIDITY AND PLASMOLYSIS IN PLANT CELLS.DIRECTIONSPut some onion skin onto a slide with a drop of Isotonic solution. Put a cover-slip on the slide and focus it under the microscope.

OSMOSIS EXPERIMENTS

OSMOSIS IN PLANT CELLS

DIRECTIONSPut some onion skin onto a slide with a drop of Isotonic solution. Put a cover-slip on the slide and focus it under the microscope.

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OSMOSIS EXPERIMENTS

OSMOSIS IN PLANT CELLS

DIRECTIONSPut some onion skin onto a slide with a drop of Strong Solution. Put a cover-slip on the slide and focus it under the microscope.

OSMOSIS EXPERIMENTS

OSMOSIS IN PLANT CELLS

DIRECTIONSPut some onion skin onto a slide with a drop of Hypotonic solution (Distilled water). Put a cover-slip on the slide and focus it under the microscope.

OSMOSIS EXPERIMENTS

OSMOSIS IN PLANT CELLS

ISOTONIC SOLUTION

HYPERTONIC SOLUTIONHYPOTONIC SOLUTION

OSMOSIS EXPERIMENTS

OSMOSIS IN PLANT CELLS

DIRECTIONSAdd a few drops of strong solution to the edge of the cover-slip.Describe what happens on the cells.

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OSMOSIS EXPERIMENTS

OSMOSIS IN PLANT CELLS

DIRECTIONS

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Make other prepared slide. Put again another fragment of onion skin onto a slide .Add a few drops of Distilled water and finally put a cover-slip on the slide and focus it under the microscope. Describe what happens to the cells now.

OSMOSIS EXPERIMENTS

OSMOSIS IN PLANT CELLS

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EXPERIMENTS

OBSERVING CAPILLARES AND BLOOD CELLS INSIDE OF THEM.Using Microscopic Coordinates.

HORIZONTAL COORDINATE

EXAMPLE: 29/89

29

89VERTICAL COORDINATE

EXPERIMENTS

OBSERVING CAPILLARES AND BLOOD CELLS INSIDE OF THEMBIOLOGICAL MATERIAL: Prepared slide : Cross sections SHEEP’FETUS TONGECross section

OBSERVATION

OSMOSIS IN PLANT CELLS

Add a few drops of strong fructose solution to the edge of the cover-slip.Describe what happens on the cells.