Bio 107
Assignment Questions
For biology practicals
Write 20 lab guidelines
And draw 5 lab symbols and explain.
Both in different full scap sheet and steple.
Draw with pencil
To be submitted on Monday…
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Given to nursing students
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20 Laboratory Guidelines for BIO 107
1. Always wear a lab coat before entering the lab.
2. No eating or drinking inside the laboratory.
3. Handle all specimens and equipment with care.
4. Wash your hands before and after experiments.
5. Always use gloves when handling chemicals or biological samples.
6. Never taste or directly inhale any substance.
7. Label all test tubes, slides, and samples properly.
8. Dispose of waste materials in designated bins.
9. Report any accidents or breakages immediately to the lab attendant.
10. Avoid unnecessary movements to prevent accidents.
11. Keep the laboratory clean and organized.
12. Do not touch electrical appliances with wet hands.
13. Always read and follow experiment instructions carefully.
14. Use a light microscope properly to avoid damage.
15. Do not mix chemicals unless instructed.
16. Ensure burners and gas outlets are turned off after use.
17. Never point test tubes containing liquids toward yourself or others.
18. Work quietly and respect others in the lab.
19. Know the location of safety equipment like fire extinguishers and eyewash stations.
20. Seek clarification from the lecturer or lab attendant when unsure.
Lab Symbols (Draw with a Pencil on a Full-Scap Sheet)
1. Biohazard Symbol – Represents biological hazards like bacteria, viruses, or harmful microorganisms.
2. Toxic Symbol – Indicates poisonous substances that can cause serious health risks if inhaled or ingested.
3. Flammable Symbol – Warns against highly flammable substances that can easily catch fire.
4. Corrosive Symbol – Shows that a substance can cause severe burns or damage to skin and materials.
5. Radioactive Symbol – Used to indicate the presence of radioactive materials that can be harmful.
Submission Instructions
• Write the guidelines on one full scap sheet.
• Draw the symbols on a separate full scap sheet using a pencil.
• Staple both sheets together.
• Submit on Monday.