A spherical cell has a diameter of 3.2 × 10-5 m.
Which gives its radius in micrometres and its diameter in nanometres?
Radius 3.2×101 μm3.2\times10^{1}\,\mu\mathrm{m}3.2×101μm; diameter 3.2×104 nm3.2\times10^{4}\,\mathrm{nm}3.2×104nm
Radius 1.6×101 μm1.6\times10^{1}\,\mu\mathrm{m}1.6×101μm; diameter 1.6×104 nm1.6\times10^{4}\,\mathrm{nm}1.6×104nm
Radius 3.2×101 μm3.2\times10^{1}\,\mu\mathrm{m}3.2×101μm; diameter 1.6×104 nm1.6\times10^{4}\,\mathrm{nm}1.6×104nm
Radius 1.6×101 μm1.6\times10^{1}\,\mu\mathrm{m}1.6×101μm; diameter 3.2×104 nm3.2\times10^{4}\,\mathrm{nm}3.2×104nm
48 exam-style questions on Edexcel GCSE Biology 1.2 Number, size and scale, covering 1.2.1 Number, size and scale with estimations and 1.2.2 Quantitative units in relation to cells. Each one has a worked solution and a mark scheme showing where the marks go.