3. LABORATORY.
Laboratory is a room or a building specially designed for biological experiments.
Types of laboratories.
- School lab.
- Hospital lab.
- Industrial lab.
- Pharmaceutical lab.
- Atomic lab.
A good lab must have:
- Enough supply of oxygen.
- Electricity.
- Water.
- Large windows.
- Quiet and safe place.
- Fire extinguisher.
Safety in Biology lab.
When an experiment is done, it should never be assumed to be completely harmless. Even the apparently simple experiments should be regarded as a potential source of danger.
Lab rules.
- Don’t handle any chemicals without instructions from the teacher.
- Any accident must be reported immediately, so first aid should be provided.
- Put off flames which are not in use.
- When heating, never put yourself or towards others.
- Hold test tubes using holders when heating.
- Never taste chemicals.
- Keep flammable substances away from flames.
- Dispose all specimens and chemicals which are already used.
- Don’t play or run in the lab.
- Don’t eat and drink in the lab.
Warning signs.
Toxic- It can poison you.
Corrosive
Flammable
Oxidant
Explosive
Harmful
Common tools used in studying Biology.
- Microscope.
- Hand lens.
- Thermometer.
- Dissection tools.
- Test tube.
- Test tube holder.
- Test tube rack.
- Bunsen burner.
- Mounted needle.
- Round bottom flask.
- Flat bottom flask.
- Cover slips.
- Spatula.
- Droppers.
- Sliders.
- Forceps.
- Scalpel.
Common chemicals used in Biology.
- Iodine.
- Glucose.
- Million’s reagent.
- Distilled water.
- Benedict’s Solution.
- Sucrose.
- Enzymes.
- Starch.
- Sudan III dye.
Specimens used in Biology.
- Grasshopper.
- Fish.
- Snakes.
- Frog.
- Plants.
- Fruits.
Models used in studying Biology.
- Heart.
- Skeleton.
- Lungs.
- Human body.
- Kidney.