Cell Structure

Worked examples (5)

• 1Calculating magnification from a scale bar (3 marks)
• 2Calculating actual size from a micrograph (4 marks)
• 3Why the electron microscope has higher resolution (4 marks)
• 4Compare the light microscope and the transmission electron microscope (6 marks)
• 5Calibrating an eyepiece graticule (5 marks)

Model answers (4)

• ✓Model answer — Practice question — synthesis across spec 2.1
• ✓Model answer 2
• ✓Model answer 3
• ✓Model answer 4

Worked examples (5)

• 1Structure and function of the rough endoplasmic reticulum (4 marks)
• 2Why mitochondria have a double membrane (3 marks)
• 3Synthesis and secretion of an exported protein (6 marks)
• 4Three differences between prokaryotic and eukaryotic cells (3 marks)
• 5Adaptations of a chloroplast for photosynthesis (5 marks)

Model answers (5)

• ✓Model answer — Practice question — synthesis across spec 2.2
• ✓Model answer 2
• ✓Model answer 3
• ✓Model answer 4
• ✓Model answer 5