A-LevelBiologyCell structure9700/12 · Oct/Nov 2021 · Q11 Mark

A scale bar on an electron micrograph is 2 cm long and represents an actual length of 1 µm. What is the magnification of the electron micrograph?

A×200

Bx2000

C×20000

D×200 000

✓ Correct answer

C: ×20000

Oracle Prep sorts past-paper questions by topic, so you can drill Cell structure and see which topics are most likely to come up next.

Topic: Cell structure, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source: A-Level Biology, Oct/Nov 2021 Paper 1 Variant 2, question 1.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content

Which parts of a cell contain ribosomes? 1 chloroplast 2 mitochondrion 3 Golgi body 4 cytoplasm

Which range of cell diameters is typical for prokaryotic cells?

Compare the characteristic features of the domains Eukarya and Bacteria.

The rainbow trout, Oncorhynchus mykiss, is a fish that is bred in commercial fish farms. Rainbow trout that have a bl…

Farmers can use insecticides to remove parasites from their sheep. Some of these insecticides act as inhibitors of th…

Which row shows a combination of molecules that could be found together in a single isolated virus?