paper 3

Question 1

how did they calculate percentage change ?

Answer 1

• calculate initial mass before osoloutio and final mass after been in solouitonon
  -intial mass minus final mass over initial mass multiply by 100

Question 2

suggest why the potatoes had to be boiled to calculate the starch content

Answer 2

• starch too large to pass though emmebrane
  -boiling it makes membrane more permeable

Question 3

what is carrying capacity

Answer 3

Max size of a population an ecosystem can support