Maths for Biology

km to m

divide by 1000

dm to m

x 0.1 or x10^-1

dm to cm

x10

cm to mm

x10

cm to μm 

x10⁴

cm to nm

x10⁷

what are litres equivalent to in length measurements?

dm³

what are millilitres equivalent to in length measurements?

cm³

l to ml

x10^-3

l to μl 

x10^-6

l to nl

x10^-9

g to mg

x10^-3

g to μg 

x10^-6

g to ng

x10^-9

percentage yield

actual/theoretical x100

how should you present ratios?

x:1

how do you find x for an x:1 ratio?

divide the first quantity by the second

what is the formula for something multiplying exponetially?

N= N₀ × 2ⁿ