Relative sizes: Cell biology: Biology: GCSE (9:1)

Centi

A prefix meaning one hundredth of a unit

Milli

A prefix meaning one thousandth of a unit

Micro

A prefix meaning one millionth of a unit

Nano

A prefix meaning one thousand-millionth of a unit

Light microscope

Equipment that uses light and lenses to magnify objects

Standard form

A system where numbers are expressed as decimals between 1 and 10 and multiplied by a power of 10

Order of magnitude

A number to the power of 10 which is used to make comparisons of size

Magnification

How much an image appears to have increased in size by

Relative size of a prokaryotic cell

A cell which is 100 times bigger than a virus

Relative size of a eukaryotic cell

A cell which is 10-100 times bigger than a bacterial cell

10^1

10 times bigger

10^2

100 times bigger

10^3

1000 times bigger

10^-1

10 times smaller

10^-2

100 times smaller