A student uses a microscope to observe plant palisade mesophyll cells.
Palisade mesophyll cells contain chloroplasts. What is the main function of chloroplasts?
Name one type of plant cell that does not contain chloroplasts.
Under a high-power microscope, the image length of a single chloroplast is measured to be 8.4 cm. The real length of this chloroplast is 3.5 μm3.5\ \mu\text{m}3.5 μm. Calculate the magnification of the image.
Use the equation: magnification=size of imagereal size of object\text{magnification} = \frac{\text{size of image}}{\text{real size of object}}magnification=real size of objectsize of image
Show your working.
State two advantages of using an electron microscope instead of a light microscope to study the internal structures of organelles like chloroplasts.
Practise AQA GCSE Biology Cell structure with exam-style questions for Foundation and Higher tier. 51 questions covering Eukaryotes and prokaryotes, Animal and plant cells, Cell specialisation, Cell differentiation, Microscopy, and Culturing microorganisms (biology only), matched to the AQA GCSE Biology (8461) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.