photosyethsis OTHER expriments ans errors (random /systematic )

Question 1

random error

Answer 1

by chance
can’t control
e.g room temp changes

repeating measurements can reduce random errors

Question 2

systematic error

Answer 2

equipment not calibrated properly
measuring proportions

Question 3

light intensity effect on photosynthesis

Answer 3

place a light source at different distances from Elodea
(upturned test tube over aquatic plant)

light increases photosynthesis until it is no longer limiting factor

Question 4

co2 effect on photosynthesis

Answer 4

add different masses of potassium hydrogen carbonate in water
releases co2 into air

co2 is limiting factor until conc has been sufficient and doesn’t affect ROR

Question 5

temperature effect on photosynthesis

Answer 5

place apparatus in water bath at different temperature

if temp too high enzymes denature reaction stops