Core Practical 8

• What does the term "plant fibres" generally refer to?

  The vascular bundle in plants
• What are the two main components of the vascular bundle?

  Xylem and phloem
• What is the function of xylem in plants?

  Transporting water
• What do phloem cells transport?

  Assimilates like sucrose
• What are sclerenchyma fibres?

  Lignified support tissues
• What does tensile strength describe?

  The maximum pulling force before breaking
• What equipment is used to separate plant fibres?

  Forceps
• What is used to test the tensile strength of fibres?

  Suspended masses
• What is the method for testing tensile strength of plant fibres?

  1. Use forceps to separate the fibres.
  2. Test tensile strength with suspended masses.
  3. Compare different types of fibres.
• What is a hazard associated with using a scalpel?

  Cuts from sharp object
• What safety precaution should be taken when using a scalpel?

  Cut away from fingers
• What should you do in case of a cut from a scalpel?

  Apply pressure and seek medical assistance
• What is a biohazard risk mentioned in the study material?

  Contamination
• What safety precaution should be taken to avoid contamination?

  Use disinfectant and wash hands
• What modification can be made to the plant used in the experiment?

  Use stinging nettles instead
• What must be done to stinging nettles before use?

  Soak for a week
• What safety equipment should be worn when handling stinging nettles?

  Rubber gloves
• What are the risks and safety precautions associated with using a scalpel and handling biohazards?

  • Scalpel:
  • Risk: Cuts from sharp object
  • Precaution: Cut away from fingers, use forceps
  • Biohazard:
  • Risk: Contamination
  • Precaution: Use disinfectant, wash hands