req prac : microscope

• What is the aim of using a light microscope in this study?

  To observe, draw, and label cells
• What must be included in the observations made with a light microscope?

  A magnification scale
• What is the first step in preparing a microscope slide?

  Prepare specimens on a microscope slide
• Why must specimens be prepared carefully on a microscope slide?

  To avoid damaging any biological specimen
• What are the most common specimens observed under a light microscope?

  Cheek cells and onion cells
• What is the purpose of using stains on cells?

  To highlight structures within cells
• Which stain is used for cheek cells?

  Methylene blue
• Which stain is used for onion cells?

  Iodine
• What is essential to understand when using a light microscope?

  The main features of the microscope
• How should you hold a microscope when moving it?

  By the arm
• What should you start with when observing through a microscope?

  The lowest-powered objective lens
• What is a key skill when producing biological drawings?

  To follow scientific drawing rules
• What should you avoid when making biological drawings?

  Being too artistic
• What are the steps to prepare a microscope slide?

  1. Select the specimen
  2. Place it on the slide
  3. Add a drop of stain if needed
  4. Cover with a coverslip
• What are the rules for producing biological drawings?

  • Use a sharp pencil
  • Draw clear outlines
  • Label parts accurately
  • Do not shade or color