Required Practical: Microscopy (OCR GCSE Biology A (Gateway Science Suite)): Quizzes
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Practise the questions
14 questions from this quiz
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Practise the questions
14 questions from this quiz
Which magnification should you start with when using a light microscope?
Which magnification should you start with when using a light microscope?
Lowest magnification
What is the coarse focus knob used for on a microscope?
What is the coarse focus knob used for on a microscope?
To bring the image into general focus
Which knob is used to sharpen the image after coarse focusing?
Which knob is used to sharpen the image after coarse focusing?
Fine focus knob
Which stain is used to make plant cells more visible?
Which stain is used to make plant cells more visible?
Iodine solution
Which stain is used to highlight animal cell structures?
Which stain is used to highlight animal cell structures?
Methylene blue
What is the formula for calculating magnification?
What is the formula for calculating magnification?
How do you find total magnification using objective and eyepiece lenses?
How do you find total magnification using objective and eyepiece lenses?
Multiply them together
Which structure is visible in plant cells but NOT in animal cells?
Which structure is visible in plant cells but NOT in animal cells?
Cell wall
Which structures can be identified in animal cells?
Which structures can be identified in animal cells?
Cell membrane, cytoplasm, nucleus
What shape do plant cells typically show under a microscope?
What shape do plant cells typically show under a microscope?
Regular shape
What shape do animal cells typically appear under a microscope?
What shape do animal cells typically appear under a microscope?
Irregular in shape
Which organelle is present in plant cells but absent in animal cells?
Which organelle is present in plant cells but absent in animal cells?
Chloroplasts
How does the vacuole in plant cells differ from animal cells?
How does the vacuole in plant cells differ from animal cells?
Plant cells have a large central vacuole
What is the purpose of using stains in microscopy?
What is the purpose of using stains in microscopy?
To enhance visibility of cell structures