Factors affecting photosynthesis

factors affecting rate at which photosynthesis (3)

-supply of raw materials

-quantity of sunlight

-temperature (affects enzyme activity)

chlorophyll test (3)

-variegated leaves

-add iodine solution

-white part goes brown, green part goes blue/black

light test(2)

-partly cover a leaf with black paper and place leaf increase light for a day

-parts that were uncovered go blue/black

test carbon dioxide (3)

-place a plant in a container with potassium hydroxide to remove CO2

-place another plant in a different container with no distilled water

-only the leaf without sodium hydroxide goes blue/black

measuring photosynthesis formula

rate= change/time

limiting factors for photosynthesis (3)

-light intensity

-carbon dioxide

-temperature

limiting factors

a factor short in supply that stops an activity