Required Practical: Microscopy (OCR GCSE Biology A, Combined (Gateway Science Suite)): Flashcards
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Stain used for plant cells (e.g., onion)
Stain used for plant cells (e.g., onion)
Iodine solution
Stain used for animal cells (e.g., cheek)
Stain used for animal cells (e.g., cheek)
Methylene blue
Starting magnification when using microscope
Starting magnification when using microscope
Lowest magnification (e.g., 4x objective)
Knob for general focus on microscope
Knob for general focus on microscope
Coarse focus knob
Knob to sharpen microscope image
Knob to sharpen microscope image
Fine focus knob
Formula for magnification
Formula for magnification
Plant cell structures to identify
Plant cell structures to identify
Cell wall, membrane, cytoplasm, nucleus, chloroplasts
Animal cell structures to identify
Animal cell structures to identify
Cell membrane, cytoplasm, nucleus
Shape of plant cells
Shape of plant cells
Regular shape
Shape of animal cells
Shape of animal cells
Irregular shape
Unique features of plant cells
Unique features of plant cells
Cell wall, chloroplasts, large central vacuole
Animal cells: cell wall & chloroplasts present?
Animal cells: cell wall & chloroplasts present?
No cell wall or chloroplasts
Purpose of stains in microscopy
Purpose of stains in microscopy
Enhance visibility of cell structures
What to avoid when placing coverslip
What to avoid when placing coverslip
Air bubbles
Calculating total magnification
Calculating total magnification
Objective lens eyepiece lens magnification