All formulae need to know!

Question 1

magnification equation

Answer 1

magnification = size of image/ size of real object

Question 2

Rf value

Answer 2

Rf= distance moved by solute/distance moved by solvent

Question 3

rates (e.g.. enzymatic reaction, breathing, transpiration)

Answer 3

rate = change in quantity/ time take

Question 4

SA to Vol ratio

Answer 4

ratio = SA/Vol

Question 5

Genetic Biodiversity

Answer 5

proportion of polymorphic gene loci = number of polymorphic gene loci / total number of loci

Question 6

cardiac output as a function of heart rate and stroke volume

Answer 6

cardiac output = heart rate x stroke volume

Question 7

Respiratory quotient

Answer 7

RQ = CO2 produced/ O2 consumed

Question 8

microorganism population growth

Answer 8

N = N0 x 2n

Question 9

Efficiency of Biomass transfers

Answer 9

Efficiency = biomass transferred/ biomass intake x100

Question 10

Temperature coefficient Q10

Answer 10

R2/R1

Question 11

circumference

Answer 11

2πr

Question 12

area of circle

Answer 12

πr 2

Question 13

percentage change

Answer 13

new-old/old x 100

Question 14

% yield

Answer 14

actual amount/ theoretical amount x 100

Question 15

% error (uncertainty)

Answer 15

2(absolute uncertainty) / quantity measured x100