Whether Chrolohyll important for plant to photosynthesis

Title:whether chlorophyll will affect plants to photosynthesis

Aim:To find out whether chlorophyll is necessary for photosynthesis.

Hypothesis:Plants need chlorophyll for photosynthesis.

To find out whether chlorophyll is needed for plants to photosynthesis.I will take two different colour of leaves for the test.one of the leaf being a green leaf and another being another type of leaf that does not contain chlorophyll . As one of the plant went through photosynthesis. When I add the iodine solution to it. It will turn into dark black to show that starch is present and photosynthesis has taken place. The relationship between both leaves is that if both plant turn into dark black it shows that chlorophyll is not necessary for plants to photosynthesis. However if only the green leaf turn into dark black, it shows that chlorophyll is needed for photosynthesis to take place.

The independent variables are the two different collies of leaves And dependent variables are whether the leaves will turn black.For the experiment to be a fair test I will take both leaf from the same plant but different part of it. And I will boil both leaf together.

Procedure:

Step 1:Prepare a hot water bath

Step 2:Boil 1 leaf in hot water about 2-3 minutes.

Step 3:After boiling the leafdry it.

Step 4:Place the leaves on a white tile and drop few drop of iodine solution into both leaves.

Step 5:Take a new green leaf out and put both leaf until den light for photosynthesis 10mins

Step 6:Record down the result. Whether both leaves turn dark blue or only green leaf.

Materials:

1 boiling tube1 beaker1 tripod stand 1 lighter 2 leaf from the same plant but different part 1 iodine solution and 1 Bunsen burner and teat tube holder 1 piece of white tile.

RESULT:

The iodine solution in the boiled leaf does not change it's colour and remain yellow,but the iodine solution in the green leaf change it's colour to dark blue.

Conclusion:

Plant needs chlorophyll to photosynthesis.because when plant loss it's chrolophyll in boiled it cannot photosynthesis.