Question

1. How will you determine that the leaves other than
green can make their own food by determine​

Answer 1

Answer:

they are living organisms

Answer 2

Objective:

• To determine that green leaves can make their own food by photosynthesis:

Experiment:

1. Take a plant with leafs having partial chlorophyll (for example: croton plant).

2. First place the plant in a dark room for 24 hours.

3. Then take out the plant the next day from the dark room and place it under the sun for about 30 minutes.

4. Take a leaf from the croton plant and then perform the starch test.

Observation:

we will be able to observe that only the green parts of the leaf turned blue black on application of iodine.

However the coloured parts of the leaf (without any chlorophyll) did not show blue black colour.

Conclusion:

This proves that chlorophyll containing leaves can prepare their own food by photosynthesis.

The non-chlorophyll parts of the leaf obtain their food from the manufacturing centres of the leaf.