calculations

Question 1

what is the absolute uncertainty

Answer 1

half the smallest divisions of the measuring equipment

Question 2

how to calculate percentage uncertainty

Answer 2

(2xabsolute uncertainty/ measurement)x100
only multiply by 2 if there were 2 measurements taken e.g. start and end of potato

Question 3

formula for magnification

Answer 3

magnification= image size/ real size

Question 4

Rf

Answer 4

distance moved by solute/distance moved by solvent

Question 5

how to calculate surface area to volume ratio

Answer 5

ratio= SA/V

Question 6

how to calculate species richness

Answer 6

counting number of individual species found within sample area

Question 7

proportion of polymorphic gene loci

Answer 7

number of polymorphic gene loci/total number of loci

Question 8

cardiac output formula

Answer 8

heart rate x stroke volume

Question 9

RQ (respiratory quotient)

Answer 9

CO2 produced/ O2 consumed

Question 10

microorganism population growth

Answer 10

N= N0 x 2^n

Question 11

efficiency of biomass transfers

Answer 11

(biomass transferred/biomass intake) x100

Question 12

percentage change

Answer 12

((new quantity- og quantity)/og quantity) x100

Question 13

percentage yield

Answer 13

(actual amount/theoretical amount) x100

Question 14

temperature coefficient (Q10)

Answer 14

R2/R1 which refers to the rate at the end of the 10C change divided by the rate before the 10C change